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Re: Therizinosauroid apomorphies
The name Segnosauria certainly has priority, if nothing else, and should
been used for this clade instead of being unnecessarily preempted by the
For what it's worth, I agree. Segnosauria certainly has priority over
Therizinosauria (but not Therizinosauroidea - not that the relevant ICZN
rules seem to apply any more to cladistic phylogenies). The name
"Therizinosauroidea" has replaced "Segnosauria" in many recent phylogenies.
I think we should reserve the taxon "Therizinosauroidea" for a more
exclusive clade WITHIN the Segnosauria, e.g.
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