> LEARN ABOUT

 > HAVE SOME FUN

 > LINKS

Mosasaur Moment

Michael J. Polcyn

SMU Researcher Michael Polcyn

Michael J. Polcyn is director of the Visualization Laboratory and Adjunct Research Associate in the Department of Geological Sciences at Southern Methodist University. His current research interests include the early evolution of Mosasauroidea and adaptations in secondarily aquatic tetrapods. Research also includes application of technology to problems in paleontology.

Recent Publications and Abstracts

2005

Polcyn, Michael J., Jacobs, Louis L., and Haber, Annat, 2005. A Morphological Model and CT Assessment of the Skull of Pachyrhachis problematicus (Squamata, Serpentes), A 98 Million Year Old Snake with Legs from the Middle East, Palaeontologia Electronica Vol. 8, Issue 1; 26A:24p, 2.9MB; http://palaeo-electronica.org/paleo/2005_1/polcyn26/issue1_05.htm

Polcyn, M.J. &Bell, G.L., 2005. Russellosaurus coheni n. gen., n. sp., a 92 million-year old mosasaur from Texas (USA), and the definition of the parafamily Russellosaurina. In: Schulp, A.S. & Jagt, J.W.M. (eds): Proceedings of the First Mosasaur Meeting. Netherlands Journal of Geosciences 84: 321-333.

Polcyn, M.J. & Bell, G.L., Jr., (abstract). The rare mosasaur genus Globidens from North Central Texas. Journal of Vertebrate Paleontology. 25(Supplement to 4):

Haber and Polcyn 2005. A new marine varanoid from the Cenomanian of the Middle East.  In: Schulp, A.S. & Jagt, J.W.M. (eds): Proceedings of the First  Mosasaur Meeting. Netherlands Journal of Geosciences 84: 247-255.

Bell, G.L. Jr. & Polcyn, M.J., 2005. Dallasaurus turneri, a new primitive mosasauroid from the Middle Turonian of Texas and comments on the phylogeny of Mosasauridae (Squamata). In: Schulp, A.S. & Jagt, J.W.M. (eds): Proceedings of the First Mosasaur Meeting. Netherlands Journal of Geosciences 84: 177-194.

Bell, G.L. Jr. & Polcyn, M.J., (abstract). An exceptionally conservative mosasaur from the Santonian of Kansas.  Journal of Vertebrate Paleontology 25:(Supplement to 4):

Jacobs, L.L., Ferguson, K., Polcyn, M.J. & Rennison, C., 2005a. Cretaceous δ13C stratigraphy and the age of dolichosaurs and early mosasaurs. In:Schulp, A.S. & Jagt, J.W.M. (eds): Proceedings of the First Mosasaur Meeting. Netherlands Journal of Geosciences 84: 257-268.

Jacobs, L.L., Polcyn, M.J., Taylor, L.H. & Ferguson, K., 2005b. Sea-surface temperatures and palaeoenvironments of dolichosaurs and early mosasaurs. In: Schulp, A.S. & Jagt, J.W.M. (eds): Proceedings of the First Mosasaur Meeting. Netherlands Journal of Geosciences 84: 269-281.

2004

Louis L. Jacobs, Michael J. Polcyn, Kurt Ferguson, Christine Rennison, Louis H. Taylor, 2004. Age, environment, and habitat of dolichosaurs and primitive mosasauroids Abstract book and field guide of the First Mosasaur Meeting, Schulp, A. S. and John W. M. Jagt (eds.), Natuurhistorisch Museum Maastricht, the Netherlands, pp. 15 (Abstract).

Michael J. Polcyn, and Gorden L. Bell Jr. 2004.  A new late middle Turonian mosasauroid from Texas. Abstract book and field guide of the First Mosasaur Meeting, Schulp, A. S. and John W. M. Jagt (eds.), Natuurhistorisch Museum Maastricht, the Netherlands, pp. 15 (Abstract).

Bell, G. L. Jr. and M. J. Polcyn. 2004. Polyphyly of Mosasauridae: The growing body of evidence. Abstract book and field guide of the First Mosasaur Meeting, Schulp, A. S. and John W. M. Jagt (eds.), Natuurhistorisch Museum Maastricht, the Netherlands, pp. 15 (Abstract).

2003

Rieppel, O. C., H. Zaher, E. Tchernov and M. J. Polcyn, 2003. The anatomy and relationships of Haasiophis terrasanctus, a fossil snake with well-developed limbs from the Mid-Cretaceous of the Middle East. Journal of Paleontology. 77(3):536-558.

Michael J. Polcyn, Eitan Tchernov, and Louis L. Jacobs, 2003. Haasiasaurus Gen. Nov. A new generic name for the basal mosasauroid Haasia Polcyn et al. 1999. Journal of Vertebrate Paleontology 23(2):476

2002

Polcyn, Michael J., Jack V. Rogers, II , Yoshitsugu Kobayashi, and Louis L. Jacobs. 2002.  Computed Tomography of an Anolis Lizard in Dominican Amber: Systematic, Taphonomic, Biogeographic and Evolutionary Implications. Palaeontologia Electronica 5(1):13pp, 5.6MB; http://palaeo-electronica.org/paleo/2002_1/amber/issue1_02.htm 

Polcyn, M. J., Dale A.Winkler, Louis L. Jacobs,and Kent Newman 2002. Fossil Occurrences and Structural Disturbance in the Triassic Chinle Formation at North Stinking Springs Mountain near St. Johns Arizona. in Heckert, A.B., and Lucas, S.G., eds., 2002, Upper Triassic Stratigraphy and Paleontology. New Mexico Museum of Natural History and Science Bulletin No. 21.