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Re:Cosesaurus.

To: dinosaur@usc.edu
Subject: Re:Cosesaurus.
From: Antoni Lacasa-Ruiz <fossils@redestb.es>
Date: Sun, 22 Jun 1997 21:19:51 +0200
Reply-to: fossils@redestb.es
Sender: owner-dinosaur@usc.edu

Hello,
Ernesto crote:
<Can you tell me what kind of animal was _Cosesaurus aviceps_ ? was it a

<"feathered" non-dinosaur reptil? Is it a valid taxon?

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.

Cheers.
Antoni Lacasa-Ruiz.
Section Palaeontology of Foundation Institut d'Estudis Ilerdencs.
LLEIDA-Spain.

Ref: Sanz JL.-Lopez N. 1984. The prolacertid Lepidosaurian Cosesaurus
aviceps
a claimed "protoavian" from the Middle Triassic of Spain.-Geobios 17.
Pp.747-753

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