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Post by stoneage on Dec 10, 2008 0:34:47 GMT -5
^ Humans have been around for 30,000 years, but close human ancestors have been around much longer.... ;D According to studies of molecular biology modern humans (Homo Sapiens) are at least 200,000 years old! ;D
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sid
Compsognathus
Posts: 24
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Post by sid on Dec 10, 2008 13:23:58 GMT -5
Sid- remember, 2 million years is a VERY long time. Humans have only been around 30,000 years or so, two million is a lot. I don't think it would be impossible for something to go extinct within 2 million years. Yeah,that's reasonable too...But we MUST remember we have only a bunch of specimens of basically every dinosaur to work and speculate about...For example,how we can know for sure that,say,Deinonychus went extinct PRECISELY 90 millions of years ago? Maybe they migrate to somewhere else than the quarrys in which we found 'em,and lived happily thereafter 'till,say,83 millions of years ago! What i wanna say is...Until we'll find at least the 50-60% of every dinosaur species (which is basically impossible,considering the rarity of fossilization),we can't be sure,100% guarantee,how much they lived on this land
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Post by leopardgeckofan on Dec 11, 2008 20:35:09 GMT -5
^ Humans have been around for 30,000 years, but close human ancestors have been around much longer.... ;D According to studies of molecular biology modern humans (Homo Sapiens) are at least 200,000 years old! ;D Recognizable humans have only been around for 30,000 years. However, human-like primates have been around for a bout 200,000.
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Post by stoneage on Dec 11, 2008 22:47:40 GMT -5
;D According to studies of molecular biology modern humans (Homo Sapiens) are at least 200,000 years old! ;D Recognizable humans have only been around for 30,000 years. However, human-like primates have been around for a bout 200,000. Anatomically modern humans (homo sapies like you and me) first appeared in the fossil record in Africa 130,000 years ago. Although studies of molecular biology give evidence that the approximate time of divergence from the common ancestor of all modern populations was 200,000 years ago. ;D
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Post by Tyrannus-Rex on Dec 15, 2008 21:07:00 GMT -5
200,000 years eh? Interesting. I'm aware that primates have been around for 3 million years right?
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Post by stoneage on Dec 15, 2008 22:44:19 GMT -5
200,000 years eh? Interesting. I'm aware that primates have been around for 3 million years right? Primates have been around since the Paleocene Epoch 60MYA. Possibly the first being Altiatlasius koulchi from Morocco which probably weighed no more then 3 1/2 ounces.
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Post by Tyrannus-Rex on Dec 16, 2008 13:58:23 GMT -5
Oh, I meant out ancestors. Haven't they been around for about 3 million years?
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Post by stoneage on Dec 16, 2008 19:01:05 GMT -5
Oh, I meant out ancestors. Haven't they been around for about 3 million years? :)It probably depends on which ancestors you are talking about. Lucy (Homonoid) (Australopithecus afarenis) about 3 1/2 million years. You might ask Bell since he has a degree in Invertebrate Paleontology. I did read about some older homonoids who our thought to have used tools but they were more primitive. Brain wise Lucy was close to a Chimpanzee. ;D
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Post by Tyrannus-Rex on Dec 16, 2008 19:13:36 GMT -5
What about this "Hobbit" they discovered in new zealand? They say it lived a mere 15,000 years ago?
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Post by stoneage on Dec 16, 2008 22:30:09 GMT -5
What about this "Hobbit" they discovered in new zealand? They say it lived a mere 15,000 years ago? Homo floresienis like homo neanderthal, and homo sapien is thought to be related to Homo erectus. There also is a 12' giant Homo giganticus also thought to be related to Homo erectus. There appears to be some controversy about this giant and little man. ;D
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