The Pandas Thumb(Lucy)

285 Words2 Pages
1. The most famous of these fossils, nicknamed Lucy, was found in 1974 near Hadar, Ethiopia (Africa continent). 2. Donald Johanson, an American anthropologist and curator at the Cleveland Museum of Natural History and his graduate student Tom Gray. 3. The other famous was paleoanthropologists Tim White; Johanson and White argue that Afar specimens and Mary Leakey’s Laetoli fossils are identical in form and belong to the same species. 4. "Lucy" it is placed into in to the taxonomic group called hominid (Australopithecus afarensis), which includes all primates including chimpanzees, orangutans & gorillas. 5. Although the specimens of Au. Afarensis indicated that Lucy's jaw was rather unlike other hominins, having a more gorilla-like appearance, “Lucy's pelvis and leg bones clearly show that Au. Afarensis walked as erect as you and I”; also Lucy’s pelvic structure indicates bipedal posture; 6. One of the modern tool is the molecular evolution. Now students can establish a molecular clock to predict times of divergence for pairs of species without good fossil evidence of ancestry. 7. The range of years is more than fourteen million years ago. The group of compounds used to base their hypothesis was amino acids. 8. The primate fossil found is called Ramapitheus; its age seems to be greater than 14 million years old. Based on new evidence Ramapitheus seems to be more ape than Hominid. 9. The other two anatomically significant parts of the body would be the foot and the pelvis. Cerebral primacy has to do with the size of the brain and the ability to walk up right. 10. “Lucy” fits into the Cerebral Primacy hypothesis because she walked up-right but had a small brain. Her body anatomy supports the

More about The Pandas Thumb(Lucy)

Open Document