[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Pygostyle

>>) the pygostyle is not diagnostic of advanced birds if later non-avian
birdforms have retained it from this earlier state.<<

It may not be diagnostic, but see it could not be retained from an earlier state
becuase other oviraptors, ones more basal than this one, don't have it.