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segnosaurs not therizinoid??

Dear All,
I was just reading an online article by Jack Conrad (see link below), indicating his belief that segnosaurs are probably not closely related Alxasaurus, and that combining them into a clade was premature and probably erroneous.
Has anything really changed (new fossil material) in the last two years that would challenge his view? Do others share the view that therizinosauroids (incl. segnosaurs) are polyphyletic?
-------- Thanks, Ken

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