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Post by schnautzr on Nov 6, 2009 0:41:29 GMT
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mantooth02
Researcher
Dieter the Saurornitholestes [F4:ManTooth02]
Posts: 134
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Post by mantooth02 on Nov 6, 2009 14:05:47 GMT
It would seem that this animal is not an actual member of the Velociraptor genus but rather a member of the Velociraptorinae sub-family which includes Deinonychus among others.
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Post by schnautzr on Nov 6, 2009 22:43:18 GMT
I'm inclined to trust your judgment...do you know where any information on this so-called Velociraptor is?
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mantooth02
Researcher
Dieter the Saurornitholestes [F4:ManTooth02]
Posts: 134
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Post by mantooth02 on Nov 6, 2009 23:25:41 GMT
I'm inclined to trust your judgment...do you know where any information on this so-called Velociraptor is? I don't know if I'm right, just my best guess. I don't know anything else about the find just that the two known velociraptor species both come from Asia.
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Post by schnautzr on Nov 8, 2009 1:44:19 GMT
This series of emails documents a similar case in the genus Saurolophus. Apparently the Bering Strait may have opened up during part of the Cretaceous. I recently read somewhere as well that a possible Tyrannosaurus had been found in Asia.
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mantooth02
Researcher
Dieter the Saurornitholestes [F4:ManTooth02]
Posts: 134
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Post by mantooth02 on Nov 8, 2009 4:27:03 GMT
Well the Asian equivalent of tyrannosaurus is tarbosaurus but some paleontologists believe it should be reclassified as a tyrannosaurus species. Velociraptor lived during the Campanian stage of the late Cretaceous. Saurolophus lived during the Maastrichian stage along with tyrannosaurus and tarbosaurus so the species moving between continents at the same time is not possible, a land bridge would have had to have been there for some time.
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Post by schnautzr on Nov 8, 2009 18:28:49 GMT
Hmm...that suggests the possibility of migration, doesn't it? It would seem the dinosaurs were migrating north during the summer and south during the winter...and a few groups got a bit lost, possibly due to a common genetic mutation that disabled their internal compass.
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mantooth02
Researcher
Dieter the Saurornitholestes [F4:ManTooth02]
Posts: 134
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Post by mantooth02 on Nov 9, 2009 4:49:50 GMT
If any dinosaurs were crossing between Asia and North America it was probably an event similar to the one that led our present day mammals and Native Americans coming over. I would bet it was more just an expansion of the animals ranges than it was migration.
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Post by schnautzr on Nov 9, 2009 15:31:37 GMT
So possibly something happened in the Gobi that caused it to become unlivable, and the dinos became nomadic, looking for someplace they could survive?
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mantooth02
Researcher
Dieter the Saurornitholestes [F4:ManTooth02]
Posts: 134
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Post by mantooth02 on Nov 9, 2009 23:15:39 GMT
Could be, it's one of those things I doubt we'll ever know for certain. Whenever new territory becomes available animals quickly take it over.
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