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How did the diplodocoid sauropod become extinct at the end of the jurassic?
Topic Started: Jul 26 2012, 12:00 AM (4,186 Views)
SpinoInWonderland
The madness has come back...
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What do you think is the reason for the complete annihilation of the diplodocoid sauropods at the end of the jurassic?
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Godzillasaurus
Reptile King
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Admantus
Jul 27 2012, 09:29 AM
Godzillaman
Jul 27 2012, 08:30 AM
Admantus
Jul 26 2012, 11:21 PM
Weren't diplidocids around during the early cretaceous? I think amargasaurus was a diplodicid.
No, amargasaurus was a titanosaur. Diplodocids, unlike brachiosaurs, dies out at the end of the Jurassic. Brachiosaurs died out in the Early Cretaceous I believe.
Amargasaurus is a dicraeosaur, a group of dinosaurs related to diplidocus and kin.
The last time I read, it said that amargasaurus was a titanosaur. My mistake.
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Jinfengopteryx
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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brolyeuphyfusion
Jul 26 2012, 12:00 AM
What do you think is the reason for the complete annihilation of the diplodocoid sauropods at the end of the jurassic?
Climate changes that caused starvation.
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Jinfengopteryx
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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brolyeuphyfusion
Jul 26 2012, 12:45 AM
theropod
Jul 26 2012, 12:41 AM
There was a lesser mass extinction at the end of the jurassic, probably caused by the exact factors I mentioned. That´s why ornithopods got so dominant during the cretaceous
Whatever caused that mass extinction, it destroyed the stegosaurians and the non-spinosaurid megalosauroids also, so there are likely more factors than the ones you listed
This should be better investigated.
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