Re: Cosesaurus.

[Dinogeorge@aol.com]

In a message dated 97-06-23 12:11:42 EDT, fossils@redestb.es (Antoni
Lacasa-Ruiz) writes:

<< Cosesaurus aviceps is a fossil from Middle Triassic of Alcover
 /Tarragona-Spain/. At first
 this fossil was considered as proto-avian by Ellemberger-Villalta, but
 later a new studies
 have placed it in prolacertid group. So, it is not feathered nor
 proto-avian. >>

Ellenberger continues to consider _Cosesaurus_ a "proto-avian," and has a
large monograph either published or in press redescribing the specimen. It is
not at all clear that _Cosesaurus_ is a prolacertian, contra the "new
studies." The supposed feather impressions, however, may not be real.