recursal/Fanatic-Fandom huggingface dataset:
Eotyrannus

A number of characters present in the holotypic specimen are unique to the genus. These include: The rostral end of dentary possessing a concave notch housing the most mesial alveolus and a dorsally-directed prong on the rostromesial margin of the notch, curving lateral furrows on the lateral surface of the dentary, a surangular with a hypertrophied gutter-like concavity near the rostrodorsal border, with the caudal end of the concavity containing foramina that perforate the body of the surangular, a low coronoid process on the surangular with a concave area located caudodorsally, and an ulna and radius with a tear-drop shaped cross-section at the mid-shaft. The holotypic specimen was disarticulated prior to fossilisation, with many elements of its skeleton scattered throughout the assemblage: none of the vertebral column is preserved in articulation and those vertebrae that are preserved consist of separated neural arches and centra, signifying that the holotype was an immature individual. Due to the relative low-quality preservation of many of the skeletal elements, numerous pieces discovered have been difficult to identify: these include unidentified cranial elements, as well as an “ulna” which has since been recognised as the distal part of the tibia. Before the proper identification of this fragment, *Eotyrannus* was reconstructed with much longer tibiae, which influenced the early reconstructions of the animal. Many of the characters also presented as unique to the genus in the diagnosis of Hutt et al. (2001) are in fact widespread throughout Tyrannosauroidea, for example the presence of 'serrated carinae on D-shaped premaxillary teeth' is far from unique to *E. lengi*. Furthermore, neither the presence of a laterally flattened rostral region to the maxilla nor a pronounced rim to the antorbital fossa are unique to the genus. The holotype of *Eotyrannus* is estimated to have measured about 4.5 m (15 feet) long and around 91-227 kg (200-500 lbs).
Camarasaurus

The Morrison Formation, situated along the eastern flank of the Rocky Mountains, is home to a fossil-rich stretch of Late Jurassic rock. A large number of dinosaur species can be found here, including relatives of *Camarasaurus* such as *Diplodocus*, *Apatosaurus*, and *Brachiosaurus*, but camarasaurs are the most abundant of the dinosaurs in the formation. A number of complete skeletons have been recovered from Colorado, New Mexico, Utah, and Wyoming, usually found in stratigraphic zones 2–6. According to radiometric dating, the Morrison sedimentary layers range between 156.3 million years ago (Mya) at the base, to 146.8 Mya at the top, which places it in the late Oxfordian, Kimmeridgian, and early Tithonian stages of the Late Jurassic period. Its environment is interpreted as semiarid with distinct wet and dry seasons.
Conchoraptor

Conchoraptor was toothless and small like its close cousin Oviraptor. Other members of their group grew to more than 20 feet [6.5 m] long,but Conchoraptor was less than a third that length. But Conchoraptor was not exactly like Oviraptor. It had no head crest,and its hands were more primitive than Oviraptor’s. The bones of Conchoraptor were first discovered more than 30 years ago in the Gobi desert. At that time they were thought to be from a young Oviraptor. Scientists later realized that the fossils belonged to a full grown member of a brand new species
Metriacanthosaurus

In 1923, German paleontologist Friedrich von Huene wrote a paper on Jurassic and Cretaceous European carnivorous dinosaurs within Saurischia. In this paper, he examined a specimen (OUM J.12144) including an incomplete hip, a leg bone, and part of a backbone, assigning it to a new species of *Megalosaurus*: *Megalosaurus parkeri*. The specific name honours W. Parker who in the nineteenth century had collected the fossils near Jordan's Cliff at Weymouth. These bones were from the Oxford Clay Formation, which dates to the Upper Jurassic.
Dinogorgon

The type species of *Dinogorgon rubidgei* was discovered on Wellwood farm, a farm owned by the grandfather of Bruce Rubidge, Sidney H. Rubidge, outside of Graaff-Reinet. The fossil was likely recovered by Haughton himself sometime in the 1930s or 1940s, and were only described by British paleontologist, Sidney H. Haughton, and James Kitching between 1953 and 1965.
Gojirasaurus

The composite term *Gojirasaurus* is derived from the name of the giant Japanese movie monster "Gojira" (Godzilla) and the Greek word "*sauros*" (σαυρος) meaning "lizard"; thus, "Godzilla lizard". In addition, a theropod dinosaur with the name *Godzillasaurus* exists in the Heisei era of *Godzilla* films, and in that continuity is explained to be the unmutated form of Godzilla. "Gojira" was selected as a reference to the great size of this theropod, which exceeded that of its Triassic counterparts. The specific name *quayi*, is a reference to Quay County, New Mexico, where the holotype specimen was discovered. *Gojirasaurus* was described and named by Kenneth Carpenter in 1997 and the type species is *Gojirasaurus quayi*.
Apatosaurus

Apatosaurus is similar to its close relative Brontosaurus. Until 2015 both were thought to be so similar that scientists wanted to give them the same name. Apatosaurus was the winner because it was named first. By any name, Apatosaurus was a huge dinosaur. It roamed the North American west along with many other giant  plant eaters, including Diplodocus, Barosaurus, Brachiosaurus, and Camarasaurus. How did all of these dinosaurs share the same food sources? Perhaps by feeding at different heights from the forest trees.
Hybodus

Hybodus ("humped tooth") is an extinct genus of shark first appearing towards the end of the Permian period, and disappearing during the Late Cretaceous. During the Triassic, Jurassic, and Cretaceous periods the hybodonts were especially successful and could be found in shallow seas across the world. For reasons that are not fully understood, the hybodonts became extinct near the end of the Late Cretaceous period.
Ceratosaurus vs Kentrosaurus

The battle starts as the Ceratosaurus firstly enters the arena and roars, while the Kentrosaurus appears, then wiggles its its tail and bellows. As the battle starts, the Kentrosaurus dashes to the Ceratosaurus, to make its strike, then the Ceratosaurus made its attack, then the stegosaur strikes its tail to the horned carnivore. moving sideways, the carnivore strikes again, as the Kentrosaurus used its spikes to swipe the Ceratosaurus' ribs, making the carnivore roar in pain. Then the Kentrosaurus flings up and bashes the Ceratosaurus using its horns, the carnosaur gets stunned. Both dinosaurs faced each other, as well they charged at each other, the stegosaur makes its strike, as well for the carnosaur, it dodges. Then the carnosaur bites its horn, the Kentrosaurus flips. As they knew that the Ceratosaurus kicks the stegosaur, then gets stunned. Then it dashes and leaps into the stegosaur, chopping off the horns of the stegosaur. Then it flings the carnosaur into the air, as well it makes its final blow, but the carnosaur pierces its horn into the stegosaur, falling off. Then the Ceratosaurus flings off the stegosaur into the air, impacting the stegosaur, killing it instantly. The Ceratosaurus stares at the lifeless body and roars in victory.
Magyarosuchus

Not to be confused with the dinosaur Magyarosaurus.

Magyarosuchus is an extinct monotypic genus of metriorhynchoid described for the first time from fossils discovered in the Kisgerecse Marl Formation in Hungary. The type species Magyarosaurus fitosi lived during the Toarcian, about 180 million years ago. Most of the skeleton is known, including parts of the jaw, torso, legs and tail, which was discovered in 1996. It was around 4.7 meters (15 feet) long when fully grown.
Cryolophosaurus

Cryolophosaurus was discovered about 100 miles [160 km] from the south pole. Geologist William Hammer found the well preserved skull by chance in the icy slopes of a mountain. Dr. Hammer jokes that Cryolophosaurus should be called “Elvisaurus” for its strange head crest. Its full name is Cryolophosaurus ellioti. That bone looks a bit like the hairstyle of rock and roll singer Elvis Presley. Cryolophosaurus’s bony crest is unlike any other early meat eating dinosaur’s head decoration. Perhaps this crest was a design to attract mates or to make the dinosaur seem more frightening to rivals. Another oddly crested dinosaur, Dilophosaurus, lived at nearly the same time and grew to the same size.
Charonosaurus

*Charonosaurus* is a very large lambeosaurine hadrosaur (estimated around 10 m (33 ft) long), known from a partial skull (Holotype: CUST J-V1251-57 (Changchun University of Sciences and Technology, Changchun, Jilin Province, China) found in the Late Maastrichtian Yuliangze Formation, west of Jiayin village, Heilongjiang Province, northeastern China. Adult and juvenile hadrosaur remains discovered in the same area and formation likely represent the same taxon and supply information on most of the postcranial skeleton; the femur length was up to 1.35 m. (4.5 ft). The partial skull resembles that of *Parasaurolophus* and probably had a similar long, backward-projecting hollow crest, indicated by the highly modified dorsal surface of the frontal bones. *Charonosaurus* is one of the largest hadrosaurs currently known from Asia and indicates that lambeosaurines survived until the very end of the Cretaceous (lambeosaurines are not known from the Late Maastrichtian in North America).
Tanius

Although consistently recovered within the Somphospondyli, the exact placement of *Tangvayosaurus* is debated. It was initially assigned by Allain *et al.* (1999) to the Titanosauria, who noted strong affinities to *Phuwiangosaurus*, which they also considered a titanosaur. A more recent review by Suteethorn *et al.* (2010) resolved both *Tangvayosaurus* and *Phuwiangosaurus* as more basal titanosauriforms. The cladogram below follows this analysis.Tan, in April 1923, discovered the remains in the east of Shandong at the village of Ch'ing-kang-kou, ten kilometres southeast of Lai Yang. In October of the same year they were excavated by Tan's associate, the Austrian paleontologist Otto Zdansky. Although the specimen was originally rather complete, only parts could be salvaged. The holotype, **PMU R.240**, was recovered from the Jiangjunding Formation of the Wangshi Series dating from the Campanian. It consists of the back of the skull, which was flat and elongated.Other species originally assigned to *Tanius* have been moved to other genera. These include: *Tanius prynadai* named in 1939 by Anatoly Nikolaevich Ryabinin, which was assigned to *Bactrosaurus*; and *Tanius chingkankouensis* named in 1958 by Yang Zhongjian, and *Tanius laiyangensis* named in 1976 by Zhen Shuonan, which were both later considered junior subjective synonyms of *Tsintaosaurus*. However, a more recent study, Zhang *et al.* (2017) determined that *T. sinensis* and *T. chingkankouensis* were valid species of *Tanius*, and that *T. laiyangensis* was probably not valid. Zhang et al. (2019) re-assessed *"Tanius" laiyangensis* as a member of the saurolophine clade Kritosaurini, the first of the clade from Asia.The type species *Tanius sinensis* was found in the Jiangjunding Formation of the Chinese Wangshi Group. The Jiangjunding formation consists purpley-grey or reddy-brown sandstones or various consistencies, siltstones and conglomerates. The Wangshi group of geologic formations is generally considered to be from the Late Cretaceous, although some regions are older. Based on the discovery of *Pinacosaurus*, only known elsewhere in the Djadokhta Formation or regions of the same age, the Wangshi Group was presumed to be a similar age of 75-71 million years old. The specific age for the Hongtuya Formation has been identified as 73.5-72.9 mya. As the Hongtuya is directly older than the Jiangjunding, it was identified that *Tanius sinensis* lived in the latest Campanian to earliest Maastrichtian by Borinder in 2015.
Eoraptor

What was the first dinosaur? It is almost impossible to know what the very first of any kind of animal is. There may always be something older waiting to be discovered. At the moment, the oldest known dinosaur is Nyasaurus from Tanzania, though whether it really is a true dinosaur remains open for discussion. We didn’t know much about that Eoraptor when it was first found in 1991 either. But later finds including a skull helped us picture Eoraptor. We know now that Eoraptor was a very early dinosaur with features unlike later dinosaurs. It had a fifth finger, where other dinosaurs had four or fewer, and it didn’t have the split in the middle of its jawbone that other meat eaters had.
Australotitan

Australotitan is an extinct genus of titanosaurian sauropod that existed during the Cenomanian-Turonian age of the Late Cretaceous in what is now southern-central Queensland, Australia. The genus contains a single species, Australotitan cooperensis. *Australotitan* was discovered in 2005 within the Winton Formation of southeast Queensland, Australia, near the town of Eromanga. Sandy Mackenzie, the discoverer, had already collected other bones on the land of his parents in 2004. The fossil material was then prepared and excavated in conjunction with the Queensland Museum and the Eromanga Natural History Museum between November 2005 and April 2010. It was nicknamed "Bananabendersaurus" after Banana Bender, a nickname for Queensland, before its description. The holotype, EMF102 (nicknamed "Cooper"), was described in 2021 on the basis of a partial skeleton consisting of a partial left scapula, partial left and complete right humeri, right ulna, the right and left pubes and ischia, and partial right and left femora. An additional three specimens were referred to the genus: EMF164, nicknamed "George," (fragmented femur, ulna, presacral vertebrae, and rib material), EMF105 (a complete femur), and EMF165 (a distal humerus). Several of the holotype fossils were found to have been trampled and compressed during deposition. This was the result of multiple smaller sauropods walking in a single line. The trackway has a total length of approximately 100 metres (330 ft). The type species, *A. cooperensis,* was named and described by Scott A. Hocknull, Melville Wilkinson, Rochelle A. Lawrence, Vladislav Konstantinov, Stuart Mackenzie and Robyn Mackenzie in 2021. The generic name, *Australotitan*, combines the Latin word 'australis," meaning "southern," as it was found in Australia (which is sometimes referred to as "The Great *Southern* Land"), with the Greek word 'Tιτάν' meaning "titan", in reference to the Greek mythological Titans and the dinosaur's gigantic size. The specific name, *cooperensis*, refers to the Cooper Creek system near the initial location of the holotype, and the nickname given to the holotype when it was discovered. *Australotitan* represents the largest known Australian dinosaur. The thighbone of specimen EMF164 has a length of 2.146 metres (7.04 ft), similar in size to the femora of *Futalognkosaurus* and *Dreadnoughtus*, though smaller than those of *Patagotitan*. The describing authors deliberately abstained from providing a size estimate, as it is notoriously difficult to obtain reliable results for sauropods. The discovery of *Australotitan* indicates that the gigantic titanosaurian sauropods were present during the mid-Cretaceous of eastern Gondwana.
Giganotosaurus vs Spinosaurus

The battle starts with both the Giganotosaurus and the Spinosaurus walking onto the edge of the jumping point. The Giganotosaurus roars and jumps down into the arena. The Spinosaurus also roars and jumps into the arena. Both face each other, starting the battle. Both roar at each other and walk towards each other. They both stare at each other face to face. The icicles start to crack. The Spinosaurus notices this and looks towards the top of the cave. The Giganotosaurus takes the opportunity and kicks the Spinosaurus, pushing him backwards. The Giganotosaurus runs forward and swipes his tail in the face of the Spinosaurus, pushing him back to the edge of the battlefield. They keep battling. The Mosasaurus leaps out of the water. Both of the dinosaurs watch the Mosasaurus. The Spinosaurus, with a great opportunity, slashes his claws into the side of the Giganotosaurus. The Giganotosaurus roars, now really enraged. Both run towards one another. The Giganotosaurus bites the arm of the Spinosaurus, throws him to the ground, and gets ready to bite the neck. The Spinosaurus instead bites the neck of the Giganotosaurus. Some icicles fall from the surface of the ice cave. The Giganotosaurus puts his foot on the underside of the Spinosaurus, leaping out of the way of the icicles. Both avoid the icicles and the Spinosaurus rolls back onto his feet. The Giganotosaurus, now raged, runs at the Spinosaurus. The Giganotosaurus rams it's head into the side of the Spinosaurus and bites its neck, trying to throw the Spinosaurus to the ground. The Spinosaurus, however, places one of its feet to the ground and leaps and throws them both to the ground. A shadow in the water is heading towards them toward both of them and Mosasaurus leaps out of the water. The Giganotosaurus and the Spinosaurus both leap into the air and land on the head of the Mosasaurus. The Mosasaurus is stunned and falls back into the water. The two dinosaurs then roar at each other and run at each other. The Spinosaurus slashes one of the Giganotosaurus' now eyes out but the Spinosaurus is slapped in the face by the tail of the Giganotosaurus. The Giganotosaurus roars even more raged. The Giganotosaurus runs forward trying to land a fatal bite on the Spinosaurus. However, the Spinosaurus aims his attack perfectly and slashes out the Giganotosaurus' other eye. The Giganotosaurus aimlessly tries to land a hit on the Spinosaurus. The Spinosaurus leaps out of the way as 5 icicles fall. They hit the Giganotosaurus and kill it instantly. The Spinosaurus roars in victory and shakes its now throbbing left arm, because it hurts after impaling Giganotosaurus's eyes. The Spinosaurus then walks forward and then he dives into the water to fight the Mosasaurus.
Pentaceratops vs Styracosaurus

The match begins and both Pentaceratops and Styracosaurus are shown, bellowing before kicking their legs and running. They bonk horns and run again. They bonk again and land on the floor. They try to push each other and Styracosaurus goes on its front legs. Pentaceratops does the same. Styracosaurus hits it slightly on the neck and they both land on the floor on all fours. Styracosaurus tries to hit it again but Pentaceratops just dodges it, making it the opportunity to hit Styracosaurus, pushing it to the thorns. Styracosaurus goes on its front legs, making Pentaceratops trip up. Pentaceratops runs and hits the Pentaceratops, making it trip up, onto its back. Styracosaurus jumps but Pentaceratops hits its tummy, flinging it to the edge of the canyon before getting back up to its feet. Styracosaurus roars, begging for mercy, Pentaceratops helps it, as it knows Styracosaurus is one of its relatives, and Styracosaurus lands on the ground. Pentaceratops walks up to it and roars, Styracosaurus roars, saying Pentaceratops can win, before lying back down. Pentaceratops roars in victory.
Ophthalmosaurus

*Ophthalmosaurus* had a body shaped like a tear-drop and a caudal fin like a half-moon. Its forelimbs were more developed than the hind ones, which suggests that the front fins did the steering while the tail did the propelling. *Ophthalmosaurus'* chief claim to fame is its eyes (some reaching about 220–230 millimetres (8.7–9.1 in) in diameter) which were extremely large in proportion to its body. The eyes occupied almost all of the space in the skull and were protected by bony plates (sclerotic rings), which most likely assisted to maintain the shape of the eyeballs against water pressure at depth. The size of the eyes and the sclerotic rings suggests that *Ophthalmosaurus* hunted at a depth where there is not much light or that it may have hunted at night when a prey species was more active.
Psitacosaurus

Though it doesn’t look it, Psittacosaurus was an early relative of Triceratops. But it was a swift little plant eater that ran on two legs, not all fours. Psittacosaurus and Triceratops did share the curved parrot style beak that gives Psittacosaurus its name. That sharp beak carried a powerful bite. And it may have been covered in keratin the same material that makes up your fingernails. Psittacosaurus may have snipped off the low branches of very tough plants. It lived in a dry environment and may have wandered to the shores of lakes to find enough plant life to feed itself.
Pycnonemosaurus

*Pycnonemosaurus* (meaning 'dense forest lizard') is a genus of carnivorous theropod dinosaur that belonged to the family Abelisauridae. It was found in the Upper Cretaceous red conglomerate sandstones of the "Cabembe Unit", Mato Grosso, Brazil, and it lived about 70 million years ago during the Late Cretaceous (Maastrichtian stage).
Kentrosaurus

Kentrosaurus is a genus of stegosaurian dinosaur from the Late Jurassic of Tanzania. The type species is K. aethiopicus, named and described by German palaeontologist Edwin Hennig in 1915. Often thought to be a "primitive" member of the Stegosauria, several recent cladistic analyses find it as more derived than many other stegosaurs, and a close relative of *Stegosaurus* from the North American Morrison Formation within the Stegosauridae. Fossils of *K. aethiopicus* have been found only in the Tendaguru Formation, dated to the late Kimmeridgian and early Tithonian ages, about 152 million years ago. Hundreds of bones were unearthed by German expeditions to German East Africa between 1909 and 1912. Although no complete skeletons are known, the remains provided a nearly complete picture of the build of the animal. *Kentrosaurus* generally measured around 4.5 metres (15 ft) in length as an adult, and weighed about one tonne (1.1 tons). It walked on all fours with straight hindlimbs. It had a small, elongated head with a beak used to bite off plant material that would be digested in a large gut. It had a, probably double, row of small plates running down its neck and back. These plates gradually merged into spikes on the hip and tail. The longest spikes were on the tail end and were used to actively defend the animal. There also was a long spike on each shoulder. The thigh bones come in two different types, suggesting that one sex was larger and more stout than the other.
Spinophorosaurus

Not to be confused with Spinosaurus

Spinophorosaurus is a genus of sauropod dinosaur that lived in what is now Niger during the Middle Jurassic period. The first two specimens were excavated in the 2000s by German and Spanish teams under difficult conditions. The skeletons were brought to Europe and digitally replicated, making *Spinophorosaurus* the first sauropod to have its skeleton 3D printed, and were to be returned to Niger in the future. Together, the two specimens represented most of the skeleton of the genus, and one of the most completely known basal sauropods of its time and place. The first skeleton was made the holotype specimen of the new genus and species Spinophorosaurus nigerenisis in 2009; the generic name ("spine-bearing lizard") refers to what was initially thought to be spiked osteoderms, and the specific name (Niger and -ensis) refers to where it was found. A juvenile sauropod from the same area was later assigned to the genus.

The subadult holotype specimen is estimated to have been around 13 m (43 ft) in length, whereas the paratype was about 14 m (46 ft) long. The shoulder height reached by these individuals was estimated at around 4 m (13 ft), and the weight at about 7 metric tons (7.7 short tons). The braincase was short, deep, and broad, and the neuroanatomy was in some ways intermediate between that of basal sauropodomorphs and the more derived neosauropods. The teeth were spatulate (spoon shaped) and had large spaced denticles at the top of the crown, an ancestral feature in sauropods. The neck of *Spinophorosaurus* is one of the most completely known among sauropods, containing 13 vertebrae. The dorsal vertebrae had multiple small air-filled internal chambers, a feature typical of later more-derived sauropods. The tail was powered by strong musculature and had a rear section that was rather rigid due to long and overlapping chevron bones. Bones originally thought to be osteoderms bearing spikes placed on the tail tip were later suggested to be clavicles.

*Spinophorosaurus* has been classified as either a very basal sauropod, or inside Eusauropoda, a more derived group. The anatomy, age, and location of specimens indicate that important developments in sauropod evolution may have occurred in North Africa, possibly controlled by climatic zones and plant biogeography. Features of the vestibular apparatus suggest that vision and coordinated eye, head, and neck movements were important in *Spinophorosaurus*. 3D models of the skeleton have been used to test its range of motion. One study suggests it may have been a high browser, and another examined possible mating postures. Sutures between the neural arches with the centra of the vertebrae were more complex in the front part of the trunk of *Spinophorosaurus*, since stresses were probably greatest in that region. *Spinophorosaurus* is known from the Irhazer Shale, a geological formation thought to be Middle Jurassic in age. It was formed by deposits from rivers and lakes in a great river-valley system.
Borealopelta

The Suncor *Borealopelta* was uncovered on March 21, 2011, at the Millennium Mine, an oil sands mine 30 kilometres (19 mi) north of Fort McMurray, Alberta, that is owned and operated by Suncor Energy. The Wabiskaw Member sediments were being removed to allow mining of the underlying bitumen-rich sands of the McMurray Formation when an excavator struck the fossil. Noting the unusual nature of the exposed fragments, the operators alerted the Royal Tyrrell Museum of Palaeontology. In accordance with Suncor's mining permit and Alberta fossil law, the specimen became the property of the Albertan government.
Compsognathus

Compsognathus has produced a lot of confusion. It was discovered in the same limestone quarries that produced Archeopteryx. At first scientists thought the fossils were from the same dinosaur. Then, for many years, scientists didn’t recognize the third finger on Compsognathus’s hands, so they thought it was related to the much later two fingered Tyrannosaurus. And, scientists also thought that Compsognathus was one of the smallest dinosaurs. However, in recent years a large number of theropods even smaller than Compsognathus have been discovered among them tiny Scansoriopteryx.
Jainosaurus

Jainosaurus is a genus of titanosaurian sauropod dinosaur of India and wider Asia, which lived in the Maastrichtian (approximately 68 million years ago). A herbivorous quadruped, an adult *Jainosaurus* would have measured around eighteen metres long and held its head six metres high. No accurate estimate of the weight has yet been made. The humerus of the type specimen is 134 centimetres long.
Rayosaurus

*Rayososaurus* is extremely similar to *Rebbachisaurus* and there is some debate as to whether *Rayososaurus* is indeed a separate genus. However, morphological and temporal differences tend to support the distinction. Fossil finds include the holotype, MACN-N 41, a scapula, femur and part of fibula, and the paratype (*Rayososaurus* sp.), one broken dorsal vertebra and four broken caudal vertebrae. The racket-shaped scapula is characteristic of the Rebbachisauridae.
Mammoth vs Tyrannosaurus

A Mammoth wanders in snowy forest. Tyrannosaurus Rex comes out of a portal and jumps in. Both of them roar at each other. Tyrannosaurus Rex tries to bite Mammoth but he throws Tyrannosaurus away. Tyrannosaurus Rex bites Mammoth on the back. Mammoth hits him on the tree and stomps him. Mammoth and Tyrannosaurus bangs each others head. Tyrannosaurus Rex bites Mammoth's trunk. Mammoth hits him with his tusk. Mammoth throws him over. Tyrannosaurus Rex bites mammoth trunk. Mammoth falls on Tyrannosaurus Rex. Tyrannosaurus Rex bites mammoth trunk. Mammoth hits T rex. Mammoth throws Tyrannosaurus Rex away. Tyrannosaurus Rex hits Mammoth with his tail. Mammoth gets bitten by Tyrannosaurus Rex on the trunk. Tyrannosaurus Rex bites off Mammoth's ear. Tyrannosaurus Rex bites Mammoth several times and kills him. Tyrannosaurus steps on Mammoth and roars in victory.
Chungkingosaurus vs Siamosaurus

The battle starts when the Siamosaurus arrives at the battlefield, walking forward and lets out its roar. The Chungkingosaurus also arrives at the battlefield, walks forward and letting its roar before facing the Siamosaurus. The Siamosaurus runs forward and then leaps into the air. The Chungkingosaurus tries to spike the Siamosaurus while it was in midair with the tail, but the Siamosaurus double jumps and spins into the air. Then, the Siamosaurus swipes its tail into the stegosaurid's face. The Chungkingosaurus side jumps to try and impale the Siamosaurus with one of its shoulder spikes. The Siamosaurus barely dodges the attack and bites down on the spike. The Chungkingosaurus, however, swipes it's tail into the Siamosaurus's body and leaves a large gash in the body. The stegosaurid attacks the spinosaurs throat with its shoulder spike and leaves another scar on the Siamosaurus. The Chungkingosaurus makes a third attack but this time, the Siamosaurus leaps into the air and spins, landing perfectly on the ground. The Chungkingosaurus then raises its tail into the air, ready to finish the fight. The Siamosaurus, now pissed, walks forward. The Chungkingosaurus leaps into the air and spins. The Siamosaurus manages to avoid the first spin but gets hit by the second one as one of the shoulder spikes hits it. The Chungkingosaurus goes for a third swing, but the Siamosaurus ducks under it and bites the neck as the fourth swing appears. The Chungkingosaurus tries to get free but it's too late. The Siamosaurus leaps into the air and spins breaking the neck of the Chungkingosaurus and both fall back to the ground. The Siamosaurus releases the lifeless body and roars in victory.
Chilesaurus

Chilesaurus was a strange dinosaur. Discovered in 2004,scientists know it was certainly a theropod, the dinosaur groups that includes birds and dinosaurs that ate mostly meat. But Chilesaurus had spoon shaped teeth designed for snipped plants. Not chewing meat. Just as odd was the design of its hips. One of its hips bones pointed backwards, which is the opposite position of that same bone in meat eating dinosaurs. Chilesaurus’s hip design made room for a big gut. Plant eating dinosaurs needed a bigger stomach so they could digest the large amount of plants needed for energy. In 2015 scientists concluded that many of the other fossils found in the area where it was first discovered actually belonged to Chilesaurus. Its full name was Chilesaurus diegosuarezi.
Gigantspinosaurus

The first fossil was found in 1985 by Ouyang Hui at Pengtang near Jinquan and was reported upon in 1986 by Gao Ruiqi and colleagues, mistaking it for a specimen of *Tuojiangosaurus*. The type species, *Gigantspinosaurus sichuanensis*, was described and named by Ouyang in 1992 in an abstract of a lecture. The generic name is derived from Latin *gigas* or *giganteus*, "enormous", and *spina*, "spine", in reference to the gigantic shoulder spines. The specific name refers to Sichuan. The name was generally considered a *nomen nudum* in the West, until in 2006 it was disclosed that the abstract contained a sufficient description. Despite its uncertain nomenclatural status, images of *Gigantspinosaurus* had appeared in several sources. Public awareness of this animal was increased in early 2006 when Tracy Ford, considering it a validly established taxon, published a short article on reconstructing it. Ford suggested that earlier reconstructions of *Gigantspinosaurus* attached the shoulder spines upside-down, and his new reconstruction shows the spine extending somewhat upwards, ending higher than the top of the animal's back. Susannah Maidment and Wei Guangbiao in 2006 concluded that *G. sichuanensis* was a valid taxon in their review of Late Jurassic Chinese stegosaurs, but did not redescribe it because at that time it was under study by Zigong Dinosaur Museum staff. In fact, a Chinese redescription by Peng Guangzhao and colleagues in 2005 would predate Maidment's publication. The holotype, ZDM 0019, was found in layers of the Upper Shaximiao Formation of Zigong (Sichuan province), which date to the Oxfordian. It consists of a partial skeleton of a probably subadult individual missing the skull (though the lower jaws are present), hind feet, and the tail end. Apart from skeletal elements also plates, spines and scutes have been found. At the left shoulder an impression of the skin had been preserved. The specimen is part of the collection of the Zigong Dinosaur Museum and has as a mounted restored skeleton been on display since 1996. In 2005 Peng e.a. reported a second specimen, ZDM 0156, a pelvis found at Chenjia near Fuquan.
Helicoprion

Fossils of *Helicoprion* have been found worldwide, as the genus is known from Russia, Western Australia, China, Kazakhstan, Japan, Laos, Norway, Canada, Mexico, and the United States (Idaho, Nevada, Wyoming, Texas, Utah, and California). More than 50% of the fossils referred to *Helicoprion* are *H. davisii* specimens from the Phosphoria Formation of Idaho. An additional 25% of fossils are found in the Ural Mountains of Russia, belonging to the species *H. bessonowi*.
Archaeopteryx

Archaeopteryx is among the most famous of all fossils. After it was discovered in 1861,impressions of feathers were seen on the smooth limestone in which it was found. But until those feather impressions were noticed, that fossil was thought to be Compsognathus, a little dinosaur. Archaeopteryx was a bird, though a very primitive one with much in common with raptor dinosaurs. Like those dinosaurs, Archaeopteryx had sharp teeth, three fingers with claws, and a long, bony tail. Very few birds today have any of those features. Archaeopteryx is considered the closest link we have yet found between dinosaurs and birds.
Dravidosaurus

Dravidosaurus (meaning "Dravidanadu lizard", Dravidanadu being a region in the southern part of India where the remains were discovered) is a controversial genus of prehistoric reptile. It was first described as the last surviving stegosaurian, the group of "plated" dinosaurs. With an estimated length of three metres (10 ft), it would have also been the smallest member of the group. Some studies, however, have argued that the bones actually belonged to a plesiosaurian marine reptile. However, still later studies have reaffirmed their stegosaurian identity.
Edmontosaurus

Edmontosaurus was one of the last of the noncrested duckbilled dinosaurs. It moved in enormous herds in the world of Tyrannosaurus Rex and Triceratops. It ground tough plants with hundreds of tiny diamond shaped teeth. In winter, it lived along the shores of a great inland sea in Montana and southwestern Canada. When the weather was warmer, it travelled north for the rich plant life of Artic summers. One fossil bed of Edmontosaurus is though to stretch for more than two miles [3 km] and contain as many as 25,000 fossils. what could have killed so many dinosaurs at once? Only a disaster such as a flood or a volcanic eruption
Micropachycephalosaurus

Most thickheaded pachycephalosaurs were small dinosaurs, but mysterious little Micropachycephalosaurus was the smallest of them all. It may not have been a pachycephalosaur. It was named by a Chinese scientist on the basis of its thick skull. Later researchers could not find the skull, and the other bones discovered had no features in common with the pachycephalosaurs. So what was Micropachycephalosaurus? For now, all that can be said is that it was a small, bird plant eater.
Europasaurus

Europasaurus was one of the smallest members of the group that includes the largest of all dinosaurs. It was solidly built and larger than nearly all other European dinosaurs of its time. But it was tiny by comparison to its giant North American cousins that include Brachiosaurus and Apatosaurus. Europasaurus only weighed three tons [2.7 MT] and grew 20 feet [6 m] long. A dozen or more Europasaurus are known from fossils. The smallest was less than 6 feet [1.7 m] long a tiny giant, perhaps only a few years old.
Pinacosaurus

The first remains of the genus were found in 1923, and the type species *Pinacosaurus grangeri* was named in 1933. *Pinacosaurus mephistocephalus* named in 1999, is a second possibly valid species differing from the type species in details of the skull armour. Of *Pinacosaurus grangeri* many skeletons have been found, more than of any other ankylosaur. These predominantly consist of juveniles that perhaps lived in herds roaming the desert landscape of their habitat.
Chungkingosaurus

Chungkingosaurus, meaning "Chongqing Lizard", is a genus of herbivorous dinosaur from the Late Jurassic Upper Shaximiao Formation in what is now China. It is a member of the Stegosauria. According to Dong e.a. the *Chungkingosaurus jiangbeiensis* holotype was one of the smallest stegosaurs with a length of less than four meters, even though it was apparently an adult, judging by the ossification of the sacrum. *Chungkingosaurus* sp. 1 was estimated at five meters; *Chungkingosaurus* sp. 2 was seen as longer than five meters. Dong e.a. indicated that *Chungkingosaurus* strongly resembled *Tuojiangosaurus*, found in the same formation, in many anatomical details. *Chungkingosaurus* was different in its smaller size, deeper snout and front lower jaws (resulting in a relatively high and narrow skull), and non-overlapping teeth with less pronounced denticles. *Chungkingosaurus* probably possessed two rows of plates and spikes on its back, which were arranged in pairs, but the total number is unknown. A skeleton model in the Chongqing Municipal museum shows fourteen pairs of plates. This model also has two pairs of tail spikes. The plates of *Chungkingosaurus* have a thickened middle section, as if they were modified spikes. The plates resemble those of *Tuojiangosaurus*. The form of the thagomizer, the tail end spikes used as a defensive weapon, is only known from specimen CV 00208. It preserves two pairs of obliquely vertical, rather stout, spikes. Dong e.a. reported that a third pair to the front of these was originally present but lost during the excavation. A unique feature is the presence of an additional pair at the very tail end, consisting of long thin spikes oriented almost horizontally and obliquely to the sides and rear in top view. Paul described this kind of thagomizer as a "pin-cushion array". The thagomizer of *Tuojiangosaurus* is not known from articulated remains.
Leptoceratops

*Leptoceratops*, like other ceratopsians, would have been a herbivore. The jaws were relatively short and deep, and the jaw muscles would have inserted over the large parietosquamosal frill, giving *Leptoceratops* a powerful bite. The teeth are unusual in that the dentary teeth have dual wear facets, with a vertical wear facet where the maxillary teeth sheared past the crown, and a horizontal wear facet where the maxillary teeth crushed against the dentary teeth. This shows that *Leptoceratops* chewed with a combination of shearing and crushing. Between the shearing/crushing action of the teeth and the powerful jaws, *Leptoceratops* was probably able to chew extremely tough plant matter. Given its small size and quadrupedal stance, *Leptoceratops* would have been a low feeder. Flowering plants, also known as angiosperms, were the most diverse plants of the day, although ferns, cycads and conifers may still have been more common in terms of numbers. A 2016 study revealed that Leptoceratops was able to chew its food much like several groups of mammals, which meant that it had a diet that consisted of tough, fibrous plant material.
Lanzhousaurus

Lanzhousaurus (meaning "Lanzhou lizard") is a genus of ornithopod dinosaur. *Lanzhousaurus* lived in the Gansu region of what is now China during the Early Cretaceous (Barremian). A partial skeleton has been recovered from the Hekou Group. It was described by You, Ji and Li in 2005 and the type and only species is Lanzhousaurus magnidens. It's been estimated to be about 10 meters (33 feet) in length and 6 tons (6.6 short tons) in weight. The genus has been described as having "astonishingly huge teeth", among the largest for any herbivorous creature ever, which indicate it was a styracosternan iguanodont. The mandible, longer than one meter, suggests a very large size for the animal. Tooth enamel of this dinosaur was growing very rapidly.
Agustinia

The name *Agustinia* honors the discoverer of the specimen, Agustin Martinelli. This dinosaur was originally named in a 1998 abstract written by famous Argentine paleontologist Jose Bonaparte. The original generic name was "Augustia", which, as it turned out, was already preoccupied by a beetle (see also: *Megapnosaurus*, *Protognathosaurus*). Bonaparte changed the name to *Agustinia* in a full paper published in 1999. There is one named species (*A. ligabuei*), which is named in honor of Dr. Giancarlo Ligabue, a philanthropist who provided financial support to the expedition which recovered the remains.
Jutatyrant

The species is known from a single specimen consisting of an "associated partial skeleton represented by a complete pelvis" as well as a partially complete leg and neck, back and tail vertebrae. This skeleton was discovered in 1984 in Dorset. The specimen was mentioned in several papers, but was not formally described until 2008. The species was named in honor of commercial fossil collector Peter Langham, who uncovered the specimen. The specimen was discovered in strata of the Kimmeridge Clay dating from the Tithonian, the final stage of the Late Jurassic, and belonging to the *Pectinatites pectinatus* ammonite zone, indicating the fossil is between 149.3 and 149 million years old.
Eomamenchisaurus

Eomamenchisaurus was a herbivore. It lived in the Jurassic period and inhabited Asia. Its fossils have been found in places such as Yunnan (China).

Quick facts about Eomamenchisaurus:

* Existed from 174.1 million years ago to 163.5 million years ago
* Lived in a terrestrial habitat
* Was a herbivore
* Reproduced by laying eggs
* Only one specimen has been found by paleontologists
Amargasaurus

Amargasaurus was a very strange and puzzling dinosaur. It is unusually small for a giant plant eater. It resembles Dicraeosaurus, an East African plant eater of the same size and time. Amargasaurus had enormous spines in pairs on its back. The sail might have been a way of attracting mates or frightening rivals. Or perhaps it was simply a device to give off or take in heat. The spines that supported the sail were huge, more than six feet [1.8 m] long. The closest size are those of Dicraeosaurus from Africa. But Dicraeosaurus’s spines were only half as long.
Pentaceratops

Pentaceratops was among the most decorated of all horned dinosaurs. It is named for the five spikes that stuck out from its head. Two were horns that stood out over its eyes. Two more stuck out from its cheeks toward the back of its face. The fifth was on its nose. These horns looked like powerful weapons, but they were to thin and breakable to be much use in fighting big predators. They may have been used just for showing off. The long frill at the end of Pentaceratops’s skull had several knobs and two spikes at the top. It may have helped protect the Pentaceratops’s neck from attack
Kosmoceratops

Kosmoceratops had the fanciest skull of any dinosaur. Triceratops is famous for its three horns. Kosmoceratops had 15 horns! The horns above Kosmoceratops’s eyes were long and thin and curved downward, unlike those of other horned dinosaurs. Ten hooklike bones poked upward and forward from the rear edge of its frill. That’s more than any horned dinosaur had. Kosmoceratops’s head was enormous, more than six feet [1.8 m] long. Its head was nearly as big as Triceratops’s, even though Kosmoceratops was only half the size. Besides having a giant head for its size compared to the skull of other horned dinosaurs, Kosmoceratops’s frill was wider and shorter than any other horned dinosaur’s.
Leaellynasaura

Leaellynasaura was a bird hipped plant eater that was no larger than a small kangaroo. In Leaellynasaura’s time, Australia was located much farther south than it is now, in the Antarctic circle. Occasionally it might have felt temperatures close to freezing, but it is unlikely that Leaellynasaura, or any other dinosaurs ever saw snow. Some researchers have suggested that Leaellynasaura may have dug burrows to protect itself from the cold. Some dinosaurs did dig holes, but there is no evidence that Leaellynasaura did.
Bonitasaura

Bonitasaura is a titanosaurian dinosaur hailing from uppermost layers of the Late Cretaceous (Santonian) Bajo de la Carpa Formation, Neuquén Group of the eastern Neuquén Basin, located in Río Negro Province, Northwestern Patagonia, Argentina. The remains, consisting of a partial sub-adult skeleton jumbled in a small area of fluvial sandstone, including lower jaw with teeth, partial vertebrae series and limb bones, were described by Sebastian Apesteguía in 2004. The genus name *Bonitasaura* refers to the fossil quarry's name, "La Bonita", while the name of the type species, *B. salgadoi*, pays homage to Leonardo Salgado, a renowned Argentine paleontologist. *Bonitasaura* measured 10 metres (33 ft) in length, and had a skull similar to another group of sauropods, the diplodocids. The lower jaw had a distinctive, sharp ridge immediately behind a reduced set of teeth. This ridge supported in life a sharp, beak-like keratin sheath that probably paired with a similar structure in the upper jaw. The keratin sheath worked much like a guillotine to crop vegetation raked into the mouth by the peg-like front teeth. This animal also had a rather short neck and robust projections of the back vertebrae for muscle attachment, indicating that the neck was used in vigorous exertions, probably during feeding.
Edmontonia vs Acrocanthosaurus

BEFORE THE BATTLE: An Acrocanthosaurus is running with a chunk of meat, An Edmontonia appears and the Acrocanthosaurus drops the meat , It looks at the meat before roaring the Edmontonia . The Edmontonia looks left and right , It saw a creature on top of the rocks on the side. ( Probably The 2 Artodus Simus from the last match.) The Acrocanthosaurus looks at the Edmontonia before roaring a roar.
Machairasaurus

During the Sino-Canadian expeditions of 1988 and 1990 some skeletons of unknown oviraptorosaurians were discovered by Philip J. Currie in Inner Mongolia. Based on two of these a new genus was named and described by Nicholas R. Longrich, Currie and Dong Zhiming in 2010 with as type species *Machairasaurus leptonychus*. The generic name is derived from Greek "short scimitar". The specific name is derived from Greek, "slender", and "claw". The species name as a whole refers to the sabre-like claws of the hand.
Gobisaurus

The Sino-Soviet Expeditions (1959–1960) discovered an ankylosaurian skeleton in the Gobi Desert of Inner Mongolia near Moartu, in the region of the Alashan Desert. The find was largely neglected until fossils were selected for a travelling exhibition touring the globe between 1990 and 1997, in the context of the China-Canada Dinosaur Project. The postcranial skeleton could not be located but the skull was displayed, informally labelled "Gobisaurus", at the time a *nomen nudum*.