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Post by dinosauria101 on Nov 13, 2019 2:05:33 GMT 5
Well I could be wrong, but wouldn't Deinonychus actually have a STRONGER bite and skull proportionately than most of the big carnosaurs? We have no examples to my knowledge of ANY big carnosaur, like Giganotosaurus, Mapusaurus, etc, damaging bone but we have Tenontosaurus bones with deep Deinonychus bite marks.
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Post by theropod on Nov 13, 2019 2:25:19 GMT 5
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Post by dinosauria101 on Nov 13, 2019 2:31:13 GMT 5
That's ALLOSAURUS FRAGILIS, not the big carcharodontosaurids (maybe I should've been a bit clearer). I know Allosaurus fragilis can damage bone; in fact Carcharodon posted something about it sawing through bones often and eating more bone than T rex.
I know of no fossil material that suggests large carcharodontosaurids can damage bones to the same extent as Deino could.
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Post by creature386 on Nov 13, 2019 2:45:19 GMT 5
Maybe that could have to do with the fact that we have far less fossil material of large carcharodontosaurids in general?
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Post by dinosauria101 on Nov 13, 2019 2:54:07 GMT 5
Could have to do with it in some cases.
That being said, large carnosaurs don't seem to have skulls very efficient for biting down on bone like Deinonychus would; though the general appearance is similar there's something about the equal size Deinonychus and Giganotosaurus skulls posted earlier that makes me feel the Deino is better for bone damage. Look very closely and you may see what I mean.
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Post by Infinity Blade on Nov 13, 2019 3:00:41 GMT 5
That's ALLOSAURUS FRAGILIS, not the big carcharodontosaurids (maybe I should've been a bit clearer). I know Allosaurus fragilis can damage bone; in fact Carcharodon posted something about it sawing through bones often and eating more bone than T rex. I know of no fossil material that suggests large carcharodontosaurids can damage bones to the same extent as Deino could. I can't think of any good reason to think a large carcharodontosaurid couldn't do what an allosaurid could do with its jaws. I'm looking at the OP skull comparison, and I'm still having trouble seeing what that is. |
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Post by creature386 on Nov 13, 2019 3:03:55 GMT 5
Look very closely and you may see what I mean. We cannot really argue against a "look closely" and I think the previous discussion has shown the limitations of eyeballing. |
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Post by theropod on Nov 13, 2019 3:13:54 GMT 5
Allosaurus=large carnosaur
The only large carnosaur with a really good fossil record.
Not surprising that we have no bite marks from giant carcharodontosaurs, that doesn’t say anything about their capacity to damage bone. Mechanically speaking, it seems clear that they could have done so at least to the same extent as the much smaller Allosaurus, probably more so on account of being much bigger.
Deinonychus teeth and jaws certainly don’t seem to show any adaptations making them more suitable to damage bone than those of carnosaurs.
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Post by dinosauria101 on Nov 13, 2019 3:17:07 GMT 5
@creature
@thero
@infinity
After looking really, really closely for a little bit, Deinonychus seems to have a more robustly constructed maxilla and premaxilla, as well as thicker and sturdier teeth.
And I suppose, then, large carnosaurs could damage bone more or less the same (as A. fragilis and each other) if the lack of fossils is the problem.
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Post by theropod on Nov 13, 2019 3:30:18 GMT 5
Deinonychus has teeth similar to carnosaurs in crown base and crown height ratio according to Smith et al. 2005
And more robustly constructed maxilla and premaxilla? How did you figure that out? Once again, we appear to be back to just judging things by the looks, but if you insist on doing that, I have to say it doesn’t look like that to me at all.
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Post by dinosauria101 on Nov 13, 2019 3:33:30 GMT 5
They look more solid/compact from side view is what I meant
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Post by theropod on Nov 13, 2019 3:56:34 GMT 5
 Maxillae and premaxillae of A: Deinonychus and B: Allosaurus scaled to roughly the same length. How exactly did you get the idea that A) looks more solid/compact? The exact opposite seems to be the case. |
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Post by dinosauria101 on Nov 13, 2019 4:10:16 GMT 5
Maybe I just was looking at it backwards, as the exact same thing between Deino and Giga is there.
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Post by theropod on Nov 13, 2019 4:20:33 GMT 5
 C) is Giganotosaurus |
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Post by dinosauria101 on Nov 13, 2019 4:21:47 GMT 5
Ah, I think I see the problem.
The relative flat appearance of C makes my brain think 'paper sheet' and 'thin'
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