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Re: Theropod forelimbs

*Less* quadrupedal than a 'roo. Kangaroos spend a lot of time moving slowly using a pentapedal
gait (the tail being the fifth 'limb'). They have no trouble orienting their man[us] palm-down.

Yes, but the forelimbs of *Camptosaurus* _nonetheless_ show numerous adaptations to bearing weight (in a more or less unguligrade pose, with mildly hyperextended fingers II and III), even though the hands faced each other unlike in kangaroos.

_Manus_ belongs to the U declension, not the O declension; the plural is again manus (this time with a long u, but vowel length isn't normally written in Latin).