But what about Lucy? This most recent discovery in Africa is being heralded by many as a true transitional form, typically a replacement for the outmoded australopithecines. Could this be hasty judgment? Let's examine the evidence. Lucy is a partial fossil skeleton, about the size of a chimpanzee, supposedly female, discovered by paleontologist Dr. Donald Johanson on November 30, 1974, in Hadar, Ethiopia. It is more complete than most fossil finds in that about 40 percent of the bones of the body have been recovered.
The age is "estimated" to be 3.2 million years. The find includes a V-shaped jaw, part of hip and large bones, and other assorted bones with very little skull fragments.2 There were other finds at the same location, other skulls and U-shaped jawbones.
What evidence makes this creature a transitional form? According to Dr. Johanson, she walked upright! Her brain size is still small, ape-like in proportion, and most of the other features are predominantly ape-like.
2007-07-05
15:39:48
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12 answers
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asked by
Dark Angel
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Religion & Spirituality