----- Original Message ----- From: "T. Michael Keesey" <keesey@gmail.com> Sent: Tuesday, July 01, 2008 6:00 AM
A decent model might be something like [...] _Eothyis_ (an early synapsid):
http://upload.wikimedia.org/wikipedia/commons/f/f6/Eothyris_BW.jpg
What was he anyhow, if he wasn't a reptile, adn wasn't an amphibian? A fish?
No, just an amniote. As the ancestral amniote, it couldn't be classified with any more detail than that.
You seem to be saying there were land bound tetrapods who were neither amphibians nor reptiles - what were they?
Tetrapods, period.