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

Re: Defending grades (Was: Re: Archaeopteryx (rant))



> Similarly, Reptilia is defined as
> the ancestor of extant reptiles (crocodilians, squamates, Sphenodon,
> testudines) and all its descendents.  Thus excluding mammals.
> 
> Mickey Mortimer

So, where do pelycosaurs fit?
Cheers - Aspidel.