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Re: DIGIT LOSS INQUIRY



Mike Taylor wrote-

> I'm sure I'm missing something obvious here, but what about those
> wacky tetradactyl theropods, the therizinosaurs?

Therizinosauroids never gained any phalanges or metatarsals.  Instead, they
enlarged the proximal portion of metatarsal I to contact the tarsus.  Their
first pedal digit still has only two phalanges, one which is an ungual.

Mickey Mortimer