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| Rauisuchids | |
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| Tweet Topic Started: Jan 28 2014, 06:27 PM (47 Views) | |
| Jack Frost | Jan 28 2014, 06:27 PM Post #1 |
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Administrator
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This something I've been meaning to bring up for awhile now but have just been too damn lazy. It is something we should address though. What are we doing with the Rauisuchids? DK I remember you saying something about them leaning towards bipedalism. Is that something we should explore for all of them or just a specific branch? |
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| the dark phoenix | Jan 28 2014, 08:38 PM Post #2 |
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the dark phoenix of wonderland
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All I got are the prestosuchid Geosuchids and ProtoGeosuchids |
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| DK1000 | Jan 30 2014, 11:50 PM Post #3 |
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Adult
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Well admittedly, the only rauisuchid I know of that scientists are seriously considering to be bipedal is Postosuchus, on account of it having pretty short forelimbs. However, I have my own personal suspicions that other late Triassic rauisuchids could have been bipedal as well, particularly Heptasuchus, which has similar looking limb proportions to Postosuchus IMO, and Polonosuchus, which looks pretty awkwardly hunched over to me to get in that quadrupedal posture. Unfortunately, Heptasuchus is too fragmentary to make any firm statements about its limb proportions, and I can't find much information on Polonosuchus, so for the moment Postosuchus is the only hard evidence we have for bipedalism in rauisuchids. It's worth noting though, that bipedalism has evolved previously in paracrocodylomorphs; poposauroids are clearly bipedal, so it's not impossible for rauisuchids to develop bipedalism. Personally, I think bipedal rauisuchids would be a likely development, and that they would out compete the quadrupedal rauisuchids...unless of course we decide to spare some quadrupedal rauisuchids by finding a way to avoid them competing with the bipeds (perhaps give them huge heads, a la erythrosuchids?) That's my two pence, at least. |
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| the dark phoenix | Jan 31 2014, 03:25 AM Post #4 |
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the dark phoenix of wonderland
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OR maybe they develop fat reserves or quills and live in alpine/arctic areas. Cold usually favors animals that are low to the ground. Suddenly I picture polar bear rauisuchids with long tails for swimming after marine prey. |
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