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Re: A note on pterosaur nesting behavior
On Jul 23, 2009, at 6:25 PM, David Peters wrote:
New paper on ptero eggs
Grellet-Tinner, Gerald, Wroe, Stephen, Thompson, Michael B. and Ji,
Qiang(2007)'A note on pterosaur nesting
behavior',Historical Biology,19:4,273 — 277
Assuming they were archosaur eggs, yes, the eggs would probably have
to be buried.
But if not archosaurs, the possibilities expand.
Based on the data in the paper, I don't entirely agree that the egg
burial model depends on an archosaurian position. The structural
traits examined by the authors are also indicative of egg burial in
living squamates, for example. I don't see how alternative
phylogenetic positions would actually change the functional conclusion
based on physiological correlates in this case. Regardless, and
interesting paper and well worth the quick read for anyone with an
interest in pterosaurs.
Michael Habib, M.S.
Center for Functional Anatomy and Evolution
Johns Hopkins School of Medicine
1830 E. Monument Street
Baltimore, MD 21205