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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,353 Views)
BossMan, Jake
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Son of God

Ok that makes more sense then thanks
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Incinerox
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Āeksiot Zaldrīzoti

CyborgIguana
Oct 1 2015, 08:51 AM
They were still Coelophysis IIRC. If anything Ghost Ranch was just incorrectly dated until recently.
Adding onto this.

They were Coelophysis bauri, the "bog standard" Coelophysis, and Ghost Ranch is indeed the Late Triassic (they were contemporaneous with the Chinle Formation). The genus that is Coelophysis actually did make it into the Early Jurassic, in the form of C. kayentakatae and C. rhodesiensis (species formerly classified as Syntarsus Megapnosaurus - whether you call them Coelophysis or Megapnosaurus is rather irrelevant to their placement in the theropod family tree anyway so whatever).
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Bill
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originally, one_piece

how many toes did ankylosaurus had for it's back leg? some reconstruction have 3, some have 4, i got confused
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CyborgIguana
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I don't think we know for sure, since AFAIK all we have of Ankylosaurus is the skull, the end of the tail and a few osteoderms.
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BossAggron
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Formerly Dilophoraptor

i think 4 is probably the safer bet, its basal to Ornithischians.
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Incinerox
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Āeksiot Zaldrīzoti

...

We have trackways, you know. I'd have a pic or something if google weren't being annoying right now, but I assure you that they show that ankylosaurids had 5 fingers and 4 toes.
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Posted Image Guat
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Was Ornitholestes a basal coelurosaur or was it a basal maniraptoran? Also what was the environment of the Lourinha Formation like?
Edited by Guat, Oct 4 2015, 09:45 PM.
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CyborgIguana
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Ornitholestes was a basal maniraptoran IIRC.
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BossMan, Jake
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Son of God

What were some of the larger examples of terrestrial "crocodilians" throughout earth's history.
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Acinonyx Jubatus
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BossMan, Jake
Oct 6 2015, 03:58 PM
What were some of the larger examples of terrestrial "crocodilians" throughout earth's history.
if we're talking about fossils definitely confirmed as Pseudosuchians, Fasolasuchus and other Rauisuchians were the biggest, I believe. Sebecosuchians got to quite large sizes too, as did Kaprosuchus and Mahajangasuchus. But if you take into account fragmentary material that may or may not be crocodyliform in origin, Razanandrongobe is by far the largest, at least as large as Tyrannosaurus.
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Posted Image Guat
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CyborgIguana
Oct 4 2015, 10:12 PM
Ornitholestes was a basal maniraptoran IIRC.
Thanks. Also was Yi Qi likely to be nocturnal or cathemeral?
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Yi Qi
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CyborgIguana
Oct 4 2015, 10:12 PM
Ornitholestes was a basal maniraptoran IIRC.
Nope,basal coelurosaur, related to coelurus and probably a very close relative of early tyrannosaurs.

Some early analysis did put it close to the maniraptoriformes, but more thorough studies have put them closer to Juravenator, with both taxa being either early tyrannosauroids or sister taxa to them.

https://en.wikipedia.org/wiki/Ornitholestes
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CyborgIguana
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Oh, that explains why I see more reconstructions of it with protofeathers than pennaceous feathers.
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Bill
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originally, one_piece

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are those skin flaps thing connecting the crest and the neck speculative or do we have evidence for it? also, are there any knowledge on parasaurolophus's color and pattern?
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BossMan, Jake
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Son of God

Bill
Oct 9 2015, 12:01 AM
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are those skin flaps thing connecting the crest and the neck speculative or do we have evidence for it? also, are there any knowledge on parasaurolophus's color and pattern?
Incinerox said that they had a plain pattern to them IIRC as for the flaps I do believe they are speculative
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