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Author Topic:   evolution and the extinction of dinos
Perdition
Member (Idle past 3238 days)
Posts: 1593
From: Wisconsin
Joined: 05-15-2003


Message 11 of 93 (607358)
03-03-2011 10:28 AM
Reply to: Message 10 by Peter
03-03-2011 9:43 AM


Re: The fossil record
do JUST the dino fossils suddenly stop, or is there a complete lack of fossils for some period around the 65 million year mark?
There are fossils of some sort throughout. After the K-T Boundary, the fossils are mostly smaller land organisms, such as birds and lizards and small mammal-like animals.
However, since birds are descended from Dinosaurs, and cladistically, animals can't evolve out of their clades, we have dino fossils and bones through to today, In fact, a nice bright red dinosaur likes to hang out in the brush behind my house during the spring/summer months.

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 Message 10 by Peter, posted 03-03-2011 9:43 AM Peter has replied

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Perdition
Member (Idle past 3238 days)
Posts: 1593
From: Wisconsin
Joined: 05-15-2003


Message 13 of 93 (607363)
03-03-2011 10:39 AM
Reply to: Message 12 by Peter
03-03-2011 10:36 AM


Re: The fossil record
Archaeopteryx is a classic example. There are a lot of types of species that have been found with some dinosaur and some bird charicteristics, with varying degrees of each.
In fact, some paleontologists have speculkated that feathers were quite an early adaptation of scales and that many of the dinosaurs we currently depict with scales actually had feathers over some or all of their bodies.

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 Message 12 by Peter, posted 03-03-2011 10:36 AM Peter has replied

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