Plesiobaena antiqua Lambe, 1902

Remarks

• Collection:    Lee Garrison

• Formation:   Judith River Group, Judith River Formation

• Location:      Fergus County, Montana

• Material:      Caudal (tail) vertebrae and metatarsal (toe)

• Brinkman (2003) has now placed the Campanian material into Pleisobaena antiqua and the Maastrichtian/Paleocene material into Plesiobaena putorius (see ref below).

• Data compiled by Lee Garrison

General Info

Synonyms (older names and misidentifications in the literature)

• Snapping turtle

• 1902 Plesiobaena antiqua Lambe

• 1934 Plesiobaena antiqua Lambe; Russell

• 1939 Plesiobaena antiqua Lambe; Case

• 1972 Plesiobaena antiqua Lambe; Gaffney

• 1977 Plesiobaena antiqua Lambe; Archibald

• 2003 Plesiobaena antiqua Lambe; Brinkman

Stratigraphic Occurrence

• Judith River Group, Judith River Formation of Montana

• Judith River Group, Dinosaur Park Formation of Alberta, Canada

• Edmonton Group, Horseshoe Canyon Formation of Alberta, Canada

Age

• Plesiobaena antiqua Lambe ranges from the early Middle to Late Campanian (75–70 mya).

Geographic Occurrence

• Alberta, Canada

• Fergus County, MT

• Hill County, MT

Remarks

           For photographs and more information see:

• Archibald, J. D.  1977.  Fossil Mammalia and Testudines of the Hell Creek Formation, and the Geology of the Tullock and Hell Creek Formations, Garfield County.  Unpublished PhD dissertation, University of California, Berkeley, 694 pp.

• Brinkman, D. B. 2003.  Anatomy and Systematics of Plesiobaena antiqua (Testudines; Baenidae) from the Mid-Campanian Judith River Group of Alberta, Canada.  Journal of Vertebrate Paleontology, 23(1), 146–155.

• Case, E. C. 1939.  A Nearly Complete Turtle Skeleton from the Upper Cretaceous of Montana.  Contributions from the Museum of Paleontology, University of Michigan 6, 1–19. 

• Gaffney, E. S.  1972.  The systematics of the North American Family Baenidae (Reptilia, Cryptodira).  Bulletin of the American Museum of Natural History, 147, 241–320.

• Lambe, L. M.  1902.  On the Vertebrata of the Mid-Cretaceous of the Northwest Territory.  Contributions to Canadian Paleontology 3, 25–81. 

• Russell, L. S. 1934.  Fossil Turtles from Saskatchewan and Alberta.  Transactions of the Royal Society of Canada, Series 3 28, 101–110.