>University of Texas Press just published an interactive cd-rom called
>"Thranaxodon"
 
Actually, it is Thrinaxodon.  For those who have WWW clients (like
Mosaic), the UC Museum of Paleontology server has information
and images showcasing this CD-ROM.  I will be happy to point out the
exact location on the server to those interested.
 
Thrinaxodon is a non-mammalian synapsid that has many interesting
cranial features showing movement toward the mammalian condition.
 
Cheers,
 
Robert Guralnick
Museum of Paleontology
University of California
Berkeley, CA 94720
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(510) 642-9696