Subject:
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Re: Evidence of Warm Blooded Dinosaurs
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Newsgroups:
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lugnet.off-topic.fun
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Date:
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Tue, 25 Apr 2000 10:35:28 GMT
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Viewed:
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267 times
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Sproaticus wrote:
> obnotherdinotopic: Brontosauri and related dinos probably gave live birth.
> Many bronto nests have been found, but no eggs. Additionally, due to the size
> of the embryonic bronto, the egg shell wouldn've had to been so thick that the
> mom would've had to *jump* on it for the baby to hatch. ...Then again, that
> could've been why they went extinct. :-,
Ichthyosaurs absolutely did (there's a famous fossil of an Ophthalmosaurus that
died while giving birth and was somehow fossilized), so there's no reason that
archosaurs didn't. Oh, regarding that end-of-the-sauropods argument, there are
fossil representatives of late camarosaurs (I believe) in the late Cretaceous.
Granted, these were "little" (~10m) sauropods, but they were still
around--although I have a feeling they were limited to extremely warm climes. The
ceratopsians and hadrosaurs were the ones who really flourished with the takeover
of deciduous plants.
best
Lindsay
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Message has 1 Reply:
 | | Re: Evidence of Warm Blooded Dinosaurs
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| (...) True, however, Ichthyosaurs are definitely not a good example, if you ask me. Sharks, after all, give birth to live young(I'm not sure about all of them, but I think they do), so perhaps laying eggs is a poor choice for large sea-going (...) (25 years ago, 25-Apr-00, to lugnet.off-topic.fun)
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Message is in Reply To:
| | Re: Evidence of Warm Blooded Dinosaurs
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| (...) Oh man, it's funny how the media is taking this as a bold new theory that is just now seeing the light of day. Horner, Bakker et al. published their thoughts on this stuff -- with much media fanfare -- ten years ago or so. Much of the (...) (25 years ago, 24-Apr-00, to lugnet.off-topic.fun)
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