Re: mosasaur babies/no marine dinos

[KiernanCR@aol.com]

Has anyone yet pointed out that hesperornithids appear to be restricted to 
the higher northern latitudes? It might offer a penguin parallel.

Mike Everhart wrote:

<<Yes, Bell, et al (1996) reported the first actual discovery of fetal
material in a mosasaur.  The citation is below: >>

Also (and unmentioned in the Caldwell and Lee _Carsosaurus_ paper) are the 
following:

Bell, G. L. Jr. and M. A. Sheldon. 1986. Description of a very young mosasaur 
from Greene County, Alabama. Journal of the Alabama Academy of Science 
57(2):76-82.

Sheldon M. A. 1987. Juvenile mosasaurs from the Mooreville Chalk of Alabama. 
Journal of Vertebrate Paleontology 7(3):25A.

__________ 1989. Implications of juvenile mosasaur recognition on taxonomy. 
Journal of Vertebrate Paleontology 9(3):38A.

__________ 1990. Immature mosasaurs from the Niobrara: a sampling problem? 
Journal of Vertebrate Paleontology 10(3):181.

__________ 1992. Ontogenetic changes in mosasaur bone microstructure. Journal 
of Vertebrate Paleontology 12(3):150A.

__________ 1993. Ontogenetic study of selected mosasaurs of North America. 
Unpublished Masters thesis, University of Texas at Austin, 184 pp.

__________ 1995. Ontogeny, ecology and evolution of North American 
mosasaurids (_Clidastes_, _Platecarpus_ and _Tylosaurus_): evidence from bone 
microstructure. Unpublisher Ph.D. dissertation, University of Rochester.

I believe that there's also a G. L. Bell Jr. and J. L. Lamb abstract from SVP 
'86, on probable ovoviviparity/viviparity in mosasauroids, based on Alabama 
material, but I don't have the reference at hand.

Caitlin R. Kiernan