It is notable for being the most species-rich dinosaur genus, but there is no general agreement on these species. Nine to eleven species are named for fossils found in different regions of China, Mongolia and Russia, with a possible additional species from Thailand.
All species of "Psittacosaurus" were gazelle-sized bipedal herbivores with a high, powerful beak on the upper jaw. At least one species had long, quill-like structures on its tail and lower back, possibly with a display function. Psittacosaurs were early ceratopsians. They developed adaptations of their own, but they also shared features with later ceratopsians, such as "Protoceratops" and the elephant-sized "Triceratops".
Zuniceratops
Zuniceratops was a ceratopsian dinosaur. It grew up to 13 feet (or 4 meter long. His dinosaur family came from Asia.
His scientific name is "Zuniceratops christopheril", had 2 tons.
Quilmesaurus
Quilmesaurus was a predatory dinosaur from the Cretaceous period. It lived 95 million years ago.
Tsarevich Alexei Nikolaevich of Russia
Tsarevich Alexei Nikolaevich Romanov (12 August 1904 – 17 July 1918) was the heir apparent of Russia during the Russian Revolution. He would have become Tsar Alexei II. He was the youngest of five children and the only son of Tsar Nicholas II of Russia and Alexandra Fyodorovna. His sisters were Olga, Tatiana, Maria, and Anastasia.
He had the disease hemophilia. He inherited the disease from his mother. The disease can be traced back to his great grandmother Queen Victoria. His father gave up the throne in 1917 and his family was exiled and then murdered in Ekaterinburg in 1918. When Alexei was struggling with hemophilia a Russian Orthodox monk named Grigori Rasputin, commonly known as Rasputin, healed Alexei better than any doctor could. This might have led to the family's murder, because they were so fond of Rasputin. Once Rasputin was murdered, Alexei and his family were murdered only two years later.
In 2000, Alexei and his family were made saints by the Russian Orthodox Church.
In 2008 his body was one of those found near the site where the family was murdered. DNA tests proved all 5 of the Tsar's children had been killed.
Zalmoxes
Zalmoxes is a genus of ornithopod dinosaur from the Upper Cretaceous of Romania. It was a relative of Iguanodon and, like all its order, it was a herbivore.
Most of the skeleton is known with exception of the end of the tail, the hands and the feet.
Oviraptor
Oviraptor is a genus of dinosaurs from what is today Mongolia. "Oviraptor" was a relatively large-brained dinosaur which cared for its eggs. In 1924, an "Oviraptor" fossil was found on top of some eggs, and some thought that it had been eating the eggs. Others thought that the fossilized "Oviraptor" was probably a parent of the eggs in the nest, and not an egg stealer.
"Oviraptor" lived in the Upper Cretaceous period, about 75 million years ago. Only one definite specimen is known (with associated eggs), from Mongolia, though a possible second specimen (also with eggs) comes from the northeast region of Inner Mongolia, China.
"Oviraptor" is usually drawn with a distinctive crest, similar to that of the cassowary. However, re-examination of several oviraptorids show that this well-known, tall-crested species may actually belong to a relative of "Oviraptor", the genus "Citipati". It is likely that "Oviraptor" did have a crest, but its exact size and shape are unknown due to crushing in the skull of the only recognized specimen.
Judging by its relatives, "Oviraptor" probably had feathers. It had a toothless beak, but its feeding habits are unknown. The only "Oviraptor" fossil preserved the remains of a lizard in the region of its stomach cavity, implying that the species was at least partially carnivorous.
In 1976, Barsbold put six more brooding (nest sitting) specimens into the genus "Oviraptor", but these were later reclassified in the new genus "Conchoraptor". Another specimen, IGN 100/42, is perhaps the most famous, owing to its well-preserved complete skull and large size. This specimen was referred to the genus "Oviraptor" by Barsbold in 1981, and was presented as "Oviraptor" in popular magazines and scientific studies. However, this specimen, with its distinctive tall, cassowary-like crest, was re-examined by the scientists who described the nesting oviraptorids, and found to resemble them more closely than the original specimens of "Oviraptor". For this reason, they removed IGN 100/42 from the genus "Oviraptor", suggesting it was a species of "Citipati".
Oyster
Oysters are a family of bivalves with rough, thick shells, the Ostreidae. Some other types of shellfish are also called 'oyster'. Many species are edible, and are usually served raw. They are also good when cooked.
In the past, they were an important food source, especially in France and Britain. They used to grow in huge oyster beds, but were "overfished" in the 19th century. Nowadays they are more expensive, so eaten less often.
Oysters are usually harvested before they are fully grown. Left to themselves, they do grow quite large. A recent example was an oyster which was 11 inches long (29cm) and 3.7 lbs in weight (1.7kg). The BBC report says "The family (firm) estimated it could be between '15 and 20 years old' due to its size. The world's largest oyster was 13.97 inches long (35.5cm) and 4.21 inches (10.7cm) in width. It was found in Denmark in December 2013, Guinness World Records said".
Oysters are picked up from their muddy beds by dredging. The oysters are "shucked" from their shells before sale. Shucking is done with a short knife inserted between the upper and lower shell. The adductor muscle, which holds it closed, is cut away, and that releases the oyster. The oyster is sold loose but within its shell. Shucking method:
The seawater the oysters were in does not stay in the oyster. Oysters (and shellfish generally) are purified while still alive before sale. That starts after they are harvested. The oysters are put into tanks pumped with clean water for 48 to 72 hours. That protects the consumer from any foul bacteria that the oyster might have picked up from the sea or river water.
Some of the unrelated 'oysters' are the pearl oyster, "Pinctada", which is a clam, and a few mussels which look a bit like oysters when they are taken out of their shells.
Tumour
A tumour (or tumor) is tissue that is growing where it should not be. Another name for a tumor is neoplasm. Tumours are either malignant (harmful) or benign (safe). Cancer, for example is malignant and sometimes spreads to other places on the body. Some tumours have a cause that makes them grow. For some tumours no cause is known. A tumour usually forms as a lump or mass.
The Tasmanian Devils in Tasmania, Australia are in danger of becoming extinct because of a malignant tumour that grows on their face.
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Sony Ericsson
Sony Ericsson Mobile Communications AB is a mobile phone manufacturer. The company is a joint venture that was established in 2001 by Japanese consumer electronics company Sony and the Swedish telecommunications company Ericsson. The two companies no longer make mobile phones independently.
Australian dollar
The Australian dollar (AUD) is the official currency of the Commonwealth of Australia. It has been in use since February 14, 1966. The Australian dollar is also used on Christmas Island, Cocos (Keeling) Islands, Norfolk Island, and the independent Pacific Islands of Kiribati, Nauru and Tuvalu. In Australia the dollar symbol $ is usually used. The signs A$ or AU$ are often used to show that it is the Australian dollar. It is subdivided into 100 cents.
In 2011 the Australian dollar was the fifth-most-traded currency in world. The most traded currencies were the US dollar, the Euro, the yen, and the pound sterling.