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Re: Another query: Baryonyx a facultative quadruped?



The issue of quadrupedalism in _Baryonyx_ has, by and large, died a natural
death. There is no compelling evidence that spinosaurids were anything
other than terrestrial bipeds. Ditto for other large terrestrial theropods
that have been regarded by some researchers as possible quadrupeds (e.g.,
_Xuanhanosaurus_).

Besides, both spinosaurids and *Xuanhanosaurus* don't have such long arms at all, and there's no evidence they were able to twist their forearms -- which means that they'd have had to walk like an anteater.