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Re: Sauropod Biology
Jaime Headden wrote:
Additionally, therizinosaurs possess elongated, non opposing or hooking
digits on long arms, unlike "prosauropods" with their "twist thumbs" and
The non-opposable pollex appears to be common to all maniraptorans. For
some reason maniraptorans lost the one-handed prehension ability that was
primitive for dinosaurs.
I don't think lumping therizinosaurs and "prosauropods" in the same
will help the case.
I tend to agree. Although therizinosaurs and prosauropods do show
convergences in overall body plan, the anatomical differences far outweigh
David Marjanovic wrote:
An SVP meeting abstract from last year says _all_ "prosauropods" so far
investigated were incapable of walking on their forelimbs.
Alone, or in combination with the hindlimbs?