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Re: AW: Heterodontosaurid with protofeathers

So, you mean, all reptiles once had fur?

Dora Smith
Austin, TX
----- Original Message ----- From: "T. Michael Keesey" <keesey@gmail.com>
To: <dinosaur@usc.edu>
Sent: Tuesday, March 31, 2009 7:10 PM
Subject: Re: AW: Heterodontosaurid with protofeathers

On Tue, Mar 31, 2009 at 4:01 PM, Dann Pigdon <dannj@alphalink.com.au> wrote:

There's no reason to assume that fur evolved just once amongst mammals

Given that we have direct evidence of fur in a stem-mammal (the _Castorocauda_ holotype, a docodont mammaliaform), there's a pretty good reason to assume that. (The picture *could* be more complex, but at this point there's no reason to *assume* so.)

T. Michael Keesey
Technical Consultant and Developer, Internet Technologies
Glendale, California