Australopithecus - wikipedia Australopithecus Australopithecus Temporal range : 4.5 -- 1.977 Ma PreЄ Є Pg ↓ Late Pliocene -- Early Pleistocene Australopithecus africanus reconstruction, San Diego Museum of Man Scientific classification Kingdom : Animalia Phylum : Chordata Class : Mammalia Order : Primates Suborder : Haplorhini Infraorder : Simiiformes Family : Hominidae Subfamily : Homininae Tribe : Hominini Subtribe : † Australopithecina Genus : † Australopithecus R.A. Dart, 1925 Type species † Australopithecus africanus Dart, 1925 Species † A. africanus † A. deyiremeda † A. garhi † A. sediba Also called Paranthropus † P. aethiopicus † P. robustus † P. boisei Also called Praeanthropus † A. afarensis † A. anamensis † A. bahrelghazali Australopithecus ( / ˌɒstrələˈpɪθɪkəs, - loʊ - / OS - trə - lo - PITH - i - kəs ; from Latin australis, meaning ' southern ', and Greek πίθηκος ( pithekos ), meaning ' ape ' ; informal australopithecine or australopith, although the term australopithecine has a broader meaning as a member of the subtribe Australopithecina which includes this genus as well as Paranthropus, Kenyanthropus, Ardipithecus, and Praeanthropus ) is an extinct genus of hominins. From paleontological and archaeological evidence, the genus Australopithecus apparently evolved in eastern Africa around 4 million years ago before spreading throughout the continent and eventually becoming extinct two million years ago. During that time, a number of australopithecine species emerged, including Australopithecus afarensis, A. africanus, A. anamensis, A. bahrelghazali, A. deyiremeda ( proposed ), A. garhi, and A. sediba. For some hominid species of this time, such as A. robustus and A. boisei, some debate exists whether they constitute members of the same genus. If so, they would be considered ' robust australopiths ', while the others would be ' gracile australopiths '. However, if these species do constitute their own genus, they may be given their own name, Paranthropus. Australopithecus species played a significant part in human evolution, the genus Homo being derived from Australopithecus at some time after three million years ago. In addition, they were the first hominids to possess certain genes, known as the duplicated SRGAP2, which increased the length and ability of neurons in the brain. One of the australopith species eventually became the genus Homo in Africa around two million years ago ( e.g. Homo habilis ), and eventually modern humans, H. sapiens sapiens. Contents 1 Evolution 2 Morphology 3 Species variations 4 Evolutionary role 5 Dentition 6 Diet 7 History of study 8 Notable specimens 9 Gallery 10 See also 11 References 12 Further reading 13 External links Evolution Gracile australopiths shared several traits with modern apes and humans, and were widespread throughout Eastern and Northern Africa around 3.5 million years ago. The earliest evidence of fundamentally bipedal hominids can be observed at the site of Laetoli in Tanzania. This site contains hominid footprints that are remarkably similar to those of modern humans and have been dated to as old as 3.6 million years. The footprints have generally been classified as australopith because that is the only form of prehuman known to have existed in that region at that time. Map of the fossil sites of the early australopithecines in Africa Australopithecus anamensis, A. afarensis, and A. africanus are among the most famous of the extinct hominins. A. africanus was once considered to be ancestral to the genus Homo ( in particular Homo erectus ). However, fossils assigned to the genus Homo have been found that are older than A. africanus. Thus, the genus Homo either split off from the genus Australopithecus at an earlier date ( the latest common ancestor being either A. afarensis or an even earlier form, possibly Kenyanthropus ), or both developed from a yet possibly unknown common ancestor independently. According to the Chimpanzee Genome Project, the human ( Ardipithecus, Australopithecus and Homo ) and chimpanzee ( Pan troglodytes and Pan paniscus ) lineages diverged from a common ancestor about five to six million years ago, assuming a constant rate of evolution. It is theoretically more likely for evolution to happen more slowly, as opposed to more quickly, from the date suggested by a gene clock ( the result of which is given as a youngest common ancestor, i.e., the latest possible date of divergence. ) However, hominins discovered more recently are somewhat older than the presumed rate of evolution would suggest. Sahelanthropus tchadensis, commonly called `` Toumai '', is about seven million years old and Orrorin tugenensis lived at least six million years ago. Since little is known of them, they remain controversial among scientists since the molecular clock in humans has determined that humans and chimpanzees had a genetic split at least a million years later. One theory suggests that the human and chimpanzee lineages diverged somewhat at first, then some populations interbred around one million years after diverging. Morphology The brains of most species of Australopithecus were roughly 35 % of the size of a modern human brain. Most species of Australopithecus were diminutive and gracile, usually standing 1.2 to 1.4 m ( 3 ft 11 in to 4 ft 7 in ) tall. In several variations is a considerable degree of sexual dimorphism, males being larger than females. According to one scholar, A. Zihlman, Australopithecus body proportions closely resemble those of bonobos ( Pan paniscus ), leading evolutionary biologists such as Jeremy Griffith to suggest that bonobos may be phenotypically similar to Australopithecus. Furthermore, thermoregulatory models suggest that Australopithecus species were fully hair covered, more like chimpanzees and bonobos, and unlike humans. Modern humans do not appear to display the same degree of sexual dimorphism as Australopithecus did. In modern populations, males are on average a mere 15 % larger than females, while in Australopithecus, males could be up to 50 % larger than females. New research suggests, however, that australopithecines exhibited a lesser degree of sexual dimorphism than these figures suggest, but the issue is not settled. Species variations Opinions differ as to whether the species A. aethiopicus, A. boisei, and A. robustus should be included within the genus Australopithecus, and no current consensus exists as to whether they should be placed in a distinct genus, Paranthropus, which is suggested to have developed from the ancestral Australopithecus line. Until the last half - decade, the majority of the scientific community included all the species shown in the box at the top of this article in a single genus. The postulated genus Paranthropus was morphologically distinct from Australopithecus, and its specialized morphology implies that its behaviour may have been quite different from that of its ancestors, although it has been suggested that the distinctive features of A. aethiopicus, A. boisei, and A. robustus may have evolved independently. Evolutionary role The fossil record seems to indicate that Australopithecus is the common ancestor of the distinct group of hominids now called Paranthropus ( the `` robust australopiths '' ), and most likely the genus Homo, which includes modern humans. Though the intelligence of these early hominids was likely no more sophisticated than in modern apes, the bipedal stature is the key element that distinguishes the group from previous primates, which were quadrupeds. The morphology of Australopithecus upset what scientists previously believed -- namely, that strongly increased brain size had preceded bipedalism. If A. afarensis was the definite hominid that left the footprints at Laetoli, that strengthens the notion that A. afarensis had a small brain, but was a biped. Fossil evidence such as this makes it clear that bipedalism far predated large brains. However, it remains a matter of controversy as to how bipedalism first emerged ( several concepts are still being studied ). The advantages of bipedalism were that it left the hands free to grasp objects ( e.g., carry food and young ), and allowed the eyes to look over tall grasses for possible food sources or predators. However, many anthropologists argue that these advantages were not large enough to cause the emergence of bipedalism. A recent study of primate evolution and morphology noted that all apes, both modern and fossil, show skeletal adaptations to erect posture of the trunk, and that fossils such as Orrorin tugenensis indicate bipedalism around six million years ago, around the time of the split between humans and chimpanzees indicated by genetic studies. This suggested that erect, straight - legged walking originated as an adaptation to tree - dwelling. Studies of modern orangutans in Sumatra have shown that these apes use four legs when walking on large, stable branches, and swing underneath slightly smaller branches, but are bipedal and keep their legs very straight when walking on multiple flexible branches under 4 cm diameter, while also using their arms for balance and additional support. This enables them to get nearer to the edge of the tree canopy to get fruit or cross to another tree. The ancestors of gorillas and chimpanzees are suggested to have become more specialised in climbing vertical tree trunks, using a bent hip and bent knee posture that matches the knuckle - walking posture they use for ground travel. This was due to climate changes around 11 to 12 million years ago that affected forests in East and Central Africa, so periods occurred when openings prevented travel through the tree canopy, and at these times, ancestral hominids could have adapted the erect walking behaviour for ground travel. Humans are closely related to these apes, and share features including wrist bones apparently strengthened for knuckle - walking. However, the view that human ancestors were knuckle - walkers is now questioned since the anatomy and biomechanics of knuckle - walking in chimpanzees and gorillas are different, suggesting that this ability evolved independently after the last common ancestor with the human lineage. Further comparative analysis with other primates suggests that these wrist - bone adaptations support a palm - based tree walking. Radical changes in morphology took place before gracile australopiths evolved ; the pelvis structure and feet are very similar to modern humans. The teeth have small canines, but australopiths generally evolved a larger postcanine dentition with thicker enamel. Most species of Australopithecus were not any more adept at tool use than modern nonhuman primates, yet modern African apes, chimpanzees, and most recently gorillas, have been known to use simple tools ( i.e. cracking open nuts with stones and using long sticks to dig for termites in mounds ), and chimpanzees have been observed using spears ( not thrown ) for hunting. For a long time, no known stone tools were associated with A. afarensis, and paleoanthropologists commonly thought that stone artifacts only dated back to about 2.5 million years ago. However, a 2010 study suggests the hominin species ate meat by carving animal carcasses with stone implements. This finding pushes back the earliest known use of stone tools among hominins to about 3.4 million years ago. Some have argued that A. garhi used stone tools due to a loose association of this species and butchered animal remains. Dentition Australopithecines have thirty two teeth, like modern humans, but with an intermediate formation ; between the great apes and humans. Their molars were parallel, like those of great apes, and they had a slight pre-canine diastema. But, their canines were smaller, like modern humans, and with the teeth less interlocked than in previous hominins. In fact, in some australopithecines the canines are shaped more like incisors. The molars of Australopithicus fit together in much the same way ours do, with low crowns and four low, rounded cusps used for crushing. They have cutting edges on the crests. Robust australopithecines ( like A. boisei and A. robustus ) had larger cheek, or buccal, teeth than the smaller -- or gracile -- species ( like A. afarensis and A. africanus ). It is possible that they had more tough, fibrous plant material in their diets while the smaller species of Australopithecus had more meat. But it is also possibly due to their generally larger build requiring more food. Their larger molars do support a slightly different diet, including some hard food. Australopithecines also had thick enamel, like those in genus Homo, while other great apes have markedly thinner enamel. One explanation for the thicker enamel is that these hominins were living more on the ground than in the trees and were foraging for tubers, nuts, and cereal grains. They would also have been eating a lot of gritty dirt with the food, which would wear at enamel, so thicker enamel would be advantageous. Or, it could simply indicate a change in diet. Robust australopithecines wore their molar surfaces down flat, unlike the more gracile species, who kept their crests, which certainly seems to suggest a different diet. The gracile Australopithecus had larger incisors, which indicates tearing and more meat in the diet, likely scavenged. The wear patterns on the tooth surfaces support a largely herbivorous diet. When we examine the buccal microwear patterns on the teeth of A. afarensis and A. anamensis, we see that A. afarensis did not consume a lot of grasses or seeds, but rather ate fruits and leaves, but A. anamensis did eat grasses and seeds in addition to fruits and leaves. Diet Artistic interpretation of Australopithecus afarensis In a 1979 preliminary microwear study of Australopithecus fossil teeth, anthropologist Alan Walker theorized that robust australopiths were largely frugivorous. Australopithecus species mainly ate fruit, vegetables, small lizards, and tubers. Much research has focused on a comparison between the South African species A. africanus and Paranthropus robustus. Early analyses of dental microwear in these two species showed, compared to P. robustus, A. africanus had fewer microwear features and more scratches as opposed to pits on its molar wear facets. These observations have been interpreted as evidence that P. robustus may have fed on hard and brittle foods, such as some nuts and seeds. More recently, new analyses based on three - dimensional renderings of wear facets have confirmed earlier work, but have also suggested that P. robustus ate hard foods primarily as a fallback resource, while A. africanus ate more mechanically tough foods. In 1992, trace - element studies of the strontium / calcium ratios in robust australopith fossils suggested the possibility of animal consumption, as they did in 1994 using stable carbon isotopic analysis. In 2005, fossils of animal bones with butchery marks dating 2.6 million years old were found at the site of Gona, Ethiopia. Fossil evidence indicates meat consumption by at least three species of hominins occurring around 2.6 - 2.5 Mya : A. africanus, A. garhi, and P. aethiopicus. In 2010, fossils of butchered animal bones dated 3.4 million years old were found in Ethiopia, close to regions where australopith fossils were found. History of study Main article : Taung Child The type specimen for genus Australopithecus was discovered in 1924, in a lime quarry by workers at Taung, South Africa. The specimen was studied by the Australian anatomist Raymond Dart, who was then working at the University of the Witwatersrand in Johannesburg. The fossil skull was from a three - year - old bipedal primate that he named Australopithecus africanus. The first report was published in Nature in February 1925. Dart realised that the fossil contained a number of humanoid features, and so, he came to the conclusion that this was an early ancestor of humans. Later, Scottish paleontologist Robert Broom and Dart set about to search for more early hominin specimens, and at several sites they found more A. africanus remains, as well as fossils of a species Broom named Paranthropus ( which would now be recognised as P. robustus ). Initially, anthropologists were largely hostile to the idea that these discoveries were anything but apes, though this changed during the late 1940s. The first australopithecine discovered in eastern Africa was a skull belonging to an A. boisei that was excavated in 1959 in the Olduvai Gorge in Tanzania by Mary Leakey. Since then, the Leakey family have continued to excavate the gorge, uncovering further evidence for australopithecines, as well as for Homo habilis and Homo erectus. The scientific community took 20 years to widely accept Australopithecus as a member of the family tree. Then, in 1997, an almost complete Australopithecus skeleton with skull was found in the Sterkfontein caves of Gauteng, South Africa. It is now called `` Little Foot '' and it is probably around three million years old. It was named Australopithecus prometheus which has since been placed within A. africanus. Other fossil remains found in the same cave in 2008 were named Australopithecus sediba, which lived 1.9 million years ago. A. africanus probably evolved into A. sediba, which some scientists think may have evolved into H. erectus, though this is heavily disputed. Notable specimens Australopithecus bahrelghazali, mandibular fragment, discovered 1995 in Sahara, Chad AL 129 - 1, an A. afarensis knee joint, discovered 1973 in Hadar, Ethiopia Karabo, a juvenile male A. sediba, discovered in South Africa Laetoli footprints, preserved hominin footprints in Tanzania Lucy, a 40 % - complete skeleton of a female A. afarensis, discovered 1974 in Hadar, Ethiopia Selam, remains of a three - year - old A. afarensis female, discovered in Dikika, Ethiopia STS 5 ( Mrs. Ples ), the most complete skull of an A. africanus ever found in South Africa STS 14, remains of an A. africanus, discovered 1947 in Sterkfontein, South Africa STS 71, skull of an A. africanus, discovered 1947 in Sterkfontein, South Africa Taung Child, skull of a young A. africanus, discovered 1924 in Taung, South Africa Gallery The spot where the first Australopithecus boisei was discovered in Tanzania. Original skull of Mrs. Ples, a female A. africanus Taung Child by Cicero Moraes, Arc - Team, Antrocom NPO, Museum of the University of Padua. Cast of the skeleton of Lucy, an A. afarensis Skull of the Taung child See also Aramis, Ethiopia Ardipithecus Chimpanzee -- human last common ancestor Dawn of Humanity ( 2015 PBS film ) Homo habilis Life timeline List of fossil sites ( with link directory ) List of human evolution fossils ( with images ) Nature timeline References Jump up ^ Jones, Daniel ( 2003 ) ( 1917 ), Peter Roach ; James Hartmann ; Jane Setter, eds., English Pronouncing Dictionary, Cambridge : Cambridge University Press, ISBN 3 - 12 - 539683 - 2 Jump up ^ Wood & Richmond 2000. Jump up ^ Briggs & Crowther 2008, p. 124. ^ Jump up to : Wood 2010. Jump up ^ Cela - Conde & Ayala 2003. Jump up ^ Reardon, Sara ( 2012 ), `` The Humanity Switch '', New Scientist ( AU / NZ ), 12 May 2012 No. 2864, pp. 10 -- 11. ISSN 1032 - 1233 Jump up ^ Toth, Nicholas and Schick, Kathy ( 2005 ). `` African Origins '' in The Human Past : World Prehistory and the Development of Human Societies ( Editor : Chris Scarre ). London : Thames and Hudson. Page 60. ISBN 0 - 500 - 28531 - 4 Jump up ^ David A. Raichlen ; Adam D. Gordon ; William E.H. Harcourt - Smith ; Adam D. Foster ; Wm. Randall Haas Jr ( 2010 ). Rosenberg, Karen, ed. `` Laetoli Footprints Preserve Earliest Direct Evidence of Human - Like Bipedal Biomechanics ''. PLoS ONE. 5 ( 3 ) : e9769. Bibcode : 2010PLoSO... 5.9769 R. doi : 10.1371 / journal. pone. 0009769. PMC 2842428. PMID 20339543. ^ Jump up to : Bower, Bruce ( May 20, 2006 ). `` Hybrid - Driven Evolution : Genomes show complexity of human - chimp split ''. Science News. 169 ( 20 ) : 308 -- 309. doi : 10.2307 / 4019102. JSTOR 4019102. ^ Jump up to : Beck, Roger B. ; Linda Black ; Larry S. Krieger ; Phillip C. Naylor ; Dahia Ibo Shabaka ( 1999 ). World History : Patterns of Interaction. Evans ton, IL : McDougal Littell. ISBN 0 - 395 - 87274 - X. Jump up ^ Zihlman AL, Cronin JE, Cramer DL, Sarich VM ( 1978 ). `` Pygmy chimpanzee as a possible prototype for the common ancestor of humans, chimpanzees and gorillas ''. Nature. 275 ( 5682 ) : 744 -- 6. Bibcode : 1978Natur. 275... 744Z. doi : 10.1038 / 275744a0. PMID 703839. Jump up ^ Griffith, Jeremy ( 2013 ). Freedom Book 1. Part 8 : 4G. WTM Publishing & Communications. ISBN 978 - 1 - 74129 - 011 - 0. Retrieved 28 March 2013. Jump up ^ David - Barrett, T. ; Dunbar, R.I.M. ( 2016 ). `` Bipedality and Hair - loss Revisited : The Impact of Altitude and Activity Scheduling ''. Journal of Human Evolution. 94 : 72 -- 82. doi : 10.1016 / j. jhevol. 2016.02. 006. PMC 4874949. PMID 27178459. Jump up ^ Thorpe, SK ; Holder, RL ; Crompton, RH. ( 2007 ). `` Origin of human bipedalism as an adaptation for locomotion on flexible branches ''. Science. 316 ( 5829 ) : 1328 -- 31. 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In Michael Ruse ; Joseph Travis. Evolution : The First Four Billion Years. Cambridge, Massachusetts : The Belknap Press of Harvard University Press. pp. 261 -- 265. ISBN 978 - 0 - 674 - 03175 - 3. Jump up ^ Jones, S. ; Martin, R. ; Pilbeam, D., eds. ( 1994 ). The Cambridge Encyclopedia of Human Evolution. Cambridge : Cambridge University Press. ISBN 978 - 0 - 521 - 32370 - 3. Also ISBN 0 - 521 - 46786 - 1 ( paperback ) Jump up ^ McPherron, Shannon P. ; Zeresenay Alemseged ; Curtis W. Marean ; Jonathan G. Wynn ; Denne Reed ; Denis Geraads ; Rene Bobe ; Hamdallah A. Bearat ( 2010 ). `` Evidence for stone - tool - assisted consumption of animal tissues before 3.39 million years ago at Dikika, Ethiopia ''. Nature. 466 ( 7308 ) : 857 -- 860. Bibcode : 2010Natur. 466... 857M. doi : 10.1038 / nature09248. PMID 20703305. ^ Jump up to : Kay, R.F., 1985, ' DENTAL EVIDENCE FOR THE DIET OF AUSTRALOPITHECUS ', Annual Review of Anthropology, 14, pp. 315 - 341. Jump up ^ Martínez, L., Estebaranz - Sánchez, F., Galbany, J., & Pérez - Pérez, A., 2016, ' Testing Dietary Hypotheses of East African Hominines Using Buccal Dental Microwear Data ', PLOS ONE, 11, pp. 1 - 25. Jump up ^ Billings, Tom. `` Humanity 's Evolutionary Prehistoric Diet and Ape Diets -- continued, Part D ) ''. Archived from the original on 8 January 2007. Retrieved 2007 - 01 - 06. ^ Jump up to : Grine FE ( 1986 ). `` Dental evidence for dietary differences in Australopithecus and Paranthropus - a quantitative - analysis of permanent molar microwear ''. Journal of Human Evolution. 15 ( 8 ) : 783 -- 822. doi : 10.1016 / S0047 - 2484 ( 86 ) 80010 - 0. Jump up ^ Scott RS, Ungar PS, Bergstrom TS, Brown CA, Grine FE, Teaford MF, Walker A ( 2005 ). `` Dental microwear texture analysis shows within - species diet variability in fossil hominins ''. Nature. 436 ( 7051 ) : 693 -- 695. Bibcode : 2005Natur. 436... 693S. doi : 10.1038 / nature03822. PMID 16079844. Jump up ^ Billings, Tom. `` Comparative Anatomy and Physiology Brought Up to Date -- continued, Part 3B ) ''. Archived from the original on 15 December 2006. Retrieved 2007 - 01 - 06. Jump up ^ Nature. `` Evidence for Meat - Eating by Early Humans ''. Jump up ^ Nature. `` Butchering dinner 3.4 million years ago ''. ^ Jump up to : Lewin, R. ( 1999 ). `` The Australopithecines ''. Human Evolution : An Illustrated Introduction. Blackwell Science. p. 112. Jump up ^ Lewin, R. ( 1999 ). `` The Australopithecines ''. Human Evolution : An Illustrated Introduction. Blackwell Science. p. 113. Jump up ^ BRUXELLES L., CLARKE R.J., MAIRE R., ORTEGA R., et STRATFORD D. -- 2014. - Stratigraphic analysis of the Sterkfontein StW 573 Australopithecus skeleton and implications for its age. Journal of Human Evolution, Jump up ^ http://phys.org/news/2014-03-stratigraphic-foot-oldest-australopithecus.html Jump up ^ Celia W. Dugger ; John Noble Wilford ( April 8, 2010 ). `` New Hominid Species Discovered in South Africa ''. The New York Times. Further reading Barraclough, G. ( 1989 ). Stone, N., ed. Atlas of World History ( 3rd ed. ). Times Books Limited. ISBN 0 - 7230 - 0304 - 1... Leakey, Richard ( 1994 ). The Origins of Human Kind. New York : BasicBooks. ISBN 0 - 465 - 03135 - 8... White, Tim D. ; WoldeGabriel, Giday ; Asfaw, Berhane ; Ambrose, S ; Beyene, Y ; Bernor, RL ; Boisserie, JR ; Currie, B ; Gilbert, H ; Haile - Selassie, Y ; Hart, WK ; Hlusko, LJ ; Howell, FC ; Kono, RT ; Lehmann, T ; Louchart, A ; Lovejoy, CO ; Renne, PR ; Saegusa, H ; Vrba, ES ; Wesselman, H ; Suwa, G ( 2006 ). `` Asa Issie, Aramis and the Origin of Australopithecus ''. Nature. 440 ( 7086 ) : 883 -- 889. Bibcode : 2006Natur. 440... 883W. doi : 10.1038 / nature04629. PMID 16612373... Gibbons, Ann ( 2006 ). The first human. New York : Doubleday. p. 306. ISBN 978 - 0385512268. Reader, John ( 2011 ). Missing links : in search of human origins. New York : Oxford University Press. p. 538. ISBN 978 - 0 - 19 - 927685 - 1. Tattersall, Ian ( 2012 ). Masters of the Planet, the search for our human origins. Palgrave - Macmillan. pp. 1 -- 79. ISBN 978 - 0 - 230 - 10875 - 2. External links Wikibooks has a book on the topic of : Introduction to Paleoanthropology Wikimedia Commons has media related to Australopithecus. Wikispecies has information related to Australopithecus Metadata and Virtual Models of Australopithecus Fossils on NESPOS The Age of Australopithecus - Interactive Map of the Evolution of Australopithecus Human Timeline ( Interactive ) -- Smithsonian, National Museum of Natural History ( August 2016 ). Human evolution Taxonomy ( Hominins ) Orrorin Sahelanthropus Last common ancestors Chimpanzee -- human Gorilla -- human Orangutan -- human Gibbon -- human Australopithecines Ardipithecus Kenyanthropus Australopithecus A. afarensis A. africanus A. anamensis A. bahrelghazali A. deyiremeda A. garhi A. sediba Paranthropus P. aethiopicus P. boisei P. robustus Humans and proto - humans ( Homo ) Proto - humans H. ergaster H. floresiensis H. gautengensis H. habilis H. rudolfensis H. tsaichangensis Homo erectus H. e. erectus H. e. georgicus H. e. lantianensis H. e. nankinensis H. e. palaeojavanicus H. e. pekinensis H. e. soloensis H. e. tautavelensis H. e. yuanmouensis Archaic humans Callao Man ? Denisovan H. antecessor H. cepranensis H. heidelbergensis H. helmei H. naledi H. neanderthalensis H. rhodesiensis Modern humans Homo sapiens Cro - Magnon H. s. idaltu H. s. sapiens ( anatomically modern human ) Manot people Red Deer Cave people ? Models General models Hunting Gathering Endurance running Aquatic ape Sexual selection Self - domestication Specific models Diet Cooking Expensive tissue Shore - based Drunken monkey Behavior Killer ape Cooperative eye Life history Grandmother Patriarch Topics Bipedalism Skeleton Muscles Skin color Hair Thermoregulation Color vision Speech Language Intelligence Gender roles Origin of modern humans Recent African origin Multiregional origin Archaic admixture Behavioral modernity Early migrations Recent evolution Timelines Human evolution Human prehistory Others Theorists Books Fossils Evolutionary anthropology Evolutionary biology portal GND : 4518965 - 1 Anthropology portal Evolutionary biology portal Paleontology portal Science portal Taxon identifiers Wikidata : Q103237 EoL : 4454130 Fossilworks : 40900 GBIF : 4827673 IRMNG : 1037597 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Australopithecus&oldid=846300474 '' Categories : Australopithecus Prehistoric primate genera Pliocene primates Pliocene mammals of Africa Pleistocene mammals of Africa Transitional fossils Piacenzian first appearances Fossil taxa described in 1925 Taxa named by Raymond Dart Hidden categories : Articles with ' species ' microformats All articles with unsourced statements Articles with unsourced statements from August 2015 Articles with unsourced statements from October 2011 Articles with unsourced statements from April 2015 Wikipedia articles with GND identifiers Talk Contents About Wikipedia Wikispecies Afrikaans Asturianu Azərbaycanca Беларуская Български བོད ་ ཡིག Bosanski Brezhoneg Català Čeština Cymraeg Dansk Deutsch Eesti Ελληνικά Español Esperanto Euskara فارسی Français Gaeilge Galego 한국어 हिन्दी Hrvatski Bahasa Indonesia Italiano עברית ಕನ್ನಡ ქართული Қазақша Кыргызча Latina Latviešu Lëtzebuergesch Lietuvių Magyar Malti مصرى Bahasa Melayu Nederlands 日本 語 Norsk Norsk nynorsk Occitan پښتو Plattdüütsch Polski Português Română Русский Саха тыла සිංහල Simple English Slovenčina Slovenščina Српски / srpski Srpskohrvatski / српскохрватски Suomi Svenska Tagalog Татарча / tatarça Тоҷикӣ Türkçe Українська اردو Tiếng Việt Winaray 中文 61 more Edit links This page was last edited on 17 June 2018, at 20 : 37 ( UTC ). 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Question: two forms of australopithecines have been found in south africa. these are
Answer: A. africanus