[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: mammal definition (was "Fossil Discovery Threatens")
In a message dated 6/25/00 8:51:51 AM Pacific Daylight Time,
> The "crown-group" cladistic definition was a dumb idea to begin with,
> being anchored on the monotremes which have a dismal fossil record. I've
> even heard cladists distancing themselves from this dubious definition.
I don't know that it's necessarily a dumb idea to recognize the living
mammals as a group (these are the ones we have on hand to study, after all;
perhaps Neomammalia would be a better term)--it just doesn't jube with the
definition of Mammalia that most workers accept.