Baragwanthia fossils were first discovered in Yea, Victoria in 1875 and were first described as a lycopod which was derived from the Zosterophylls by Australia’s eminent pioneer botanist, Dr Isobel Cookson in 1935.…
1. Evidence for the rearrangement of crustal plates and continental drift indicates that Australia was once part of an ancient super continent…
The puzzlelike fit of all the continents fossils of Mesosaurus, and similar rock structures on…
Until 1971, an understanding of the history of Australia's platypus was non-existent. Apart from the fact that it was a monotreme and only known from Australia, all else was mystery. Then three major discoveries were made: two molar teeth of Obdurodon insignis, a 25 million-year-old platypus from the Tirari desert; a jaw fragment with three teeth of sterepodan galmani a 110 million year old monotreme from opal deposits at Lightning Ridge, New South Wales; and, from 15-20-million-year-old Riversleigh deposits, a complete skull as well as a nearly complete dentition of a second species…
Australopithecus- an extinct genus of small-brained, large-toothed bipedal hominids that live in Africa between one and four million years ago.…
This thesis began as an investigation into evolution of the platypus family (Ornithorhynchidae, Monotremata), now known from both Australia and South America. The thesis broadened its scope with inclusion of non-ornithorhynchid Mesozoic monotremes from Lightning Ridge, NSW. This change in direction brought an unexpected result: a fossil mammal from Lightning Ridge investigated for this thesis (presumed to be monotreme: Flannery et al., 1995) appears to be a new and unique type of mammal. Specimens were procured through Queensland Museum (Riversleigh material); Australian Museum (Lightning Ridge material); and Museum of Victoria and the South Australian Museum (fossil ornithorhynchids). Specimens were examined under a light microscope and scanning electron microscope; specimens were photographed using light photography and a scanning electron microscope; and illustrations and reconstructions were done with a camera lucida microscope attachment and photographic references. Parsimony analysis utilised the computer programs PAUP and MacClade. Major conclusions: 1) analysis and reconstruction of the skull of the Miocene platypus Obdurodon dicksoni suggest this robust, large-billed platypus was a derived northern offshoot off the main line of ornithorhynchid evolution; 2) the well-preserved skull of Obdurodon dicksoni shows aspects of soft anatomy previously unknown for fossil ornithorhynchids; 3) two upper molars from Mammalon Hill (Etadunna Formation, late Oligocene, central Australia) represent a third species of Obdurodon; 4) the South American ornithorhynchid Monotrematum sudamericanum from the Paleocene of Argentina is very close in form to the Oligocene-Miocene Obdurodon species…
| * A creature belonging to the family Hominidae, which includes human and humanlike species. * Australopithecus genus evolved in eastern Africa…
Methods in Evolutionary Anthro & Archaeology Early Hominins Homo erectus and Homo floresiensis Reading week - no class…
* Fossils found in water and wind-eroded exposures, rift valleys (Great Africa and Rift Valley), volcanic tuffs, rich in potassium, café sites. In Africa during the Late Miocene…
In addition, the upper blades of Ardi's pelvis are shorter and wider in length in contrast of the upper blades of apes (Ann Gibbons 39). Ardi's spine resembled to a human's spine, in other words it was both long and curved instead of short and stiff like what a chimpanzee's would look like (Ann Gibbons 39). Therefore, these modifications suggested to C. O Lovejoy that Ar. ramidus had been bipedal for an extended timeframe (Ann Gibbons 39). Even so, the lower pelvis is enormous and sophisticated alike to African apes instead of hominins (Ann Gibbons 39). Ardi's opposable big toe and sophisticated characteristics within their hands and feet determined that Ardi didn't walk similar to Lucy and still spent an extended…
- The continents fit together like a jig-saw puzzle. Rocks on the opposing edges are exactly…
Accordingly, the pelvic bone in an Australopithecus is very similar to a modern human's pelvis. The ilium in a human looks like a rough copy of the Australopithecines’ ilium just constricted. Unlike a chimpanzee’s pelvic bone, both the Australopithecus and the human pelvic bone have a rounded end to it. In the figure with the exhibit, the central skeleton, the Australopithecus, has a rounded pelvis that is more wide than it is long. This is also evident in the human skeleton, the one to the right of the one in the…
It is still being debated to on exactly when did the ancestor of our species began to walk on two legs. One hypothesis relies on a 6-7 million year old skull of Sahelanthropus tchadensis. The skull was discovered in the Djurab Desert in Chad. Since only the skull was discovered, it is still unclear on how Sahelanthropus tchadensis fits in our evolutionary…
When the Genus Australopithecus was still alive, their brains were not very well developed. They where hunter gathers who moved with the seasons and changed to better fit their environment. As their species grew their brains grew they were replaced with the Homo erectus. This new species had a larger brains better fit for survival, they created more sophisticated tools for hunting and created fire. They also created a functional language for them to communicate. While the new species gained intelligence about their world they evolved into the species we have today known as Homo Sapiens. The frontal cortex of the brain grew allowing more room for conscious thinking. This allowed more ideas for changing the land around them and have more free flow of ideas for what they can do or how they can go farther exploring. They were the first to cross the land bridge and cross oceans onto islands to live there.…
The donkey or ass, Equus africanus asinus,[1][2] is a domesticated member of the Equidae or horse family. The wild ancestor of the donkey is the African wild ass, E. africanus. The donkey has been used as a working animal for at least 5000 years. There are more than 40 million donkeys in the world, mostly in underdeveloped countries, where they are used principally as draught or pack animals. Working donkeys are often associated with those living at or below subsistence levels. Small numbers of donkeys are kept for breeding or as pets in developed countries.…