Thescelosaurus neglectus Gilmore, 1913

Anterior dentary teeth (Hell Creek Formation)

Pes digits (Judith River Formation)

baby Thescelosaurus tooth (lingual/proximal view)

Remarks

• Collection:   Lee Garrison

• Formation:  Judith River and Hell Creek Formations

• Location:     Montana 

           

• Thescelosaurus neglectus Gilmore was part of a northern and even a polar dinosaur assemblage!

• Data compiled by Lee Garrison.  Thanks!

General Info

Synonyms (older names and misidentifications)

• 1913 Thescelosaurus neglectus Gilmore

• 1975 Thescelosaurus neglectus Gilmore; Galton

• 1992 Thescelosaurus neglectus Gilmore; Weishampel & Heinrich

• 1995 Thescelosaurus neglectus Gilmore; Galton

• 2000 Thescelosaurus neglectus Gilmore; Fisher, Russell, Stoskopf, Barrick, Hammer & Kuzmitz

Stratigraphic Occurrence

• Judith River Group, Judith River Formation of Montana

• Montana Group, Hell Creek Formation of Montana

• Prince Creek Formation of Alaska

Age

• Thescelosaurus neglectus Gilmore ranges from the middle Campanian to the Late Maastrichtian (~72-65 mya).

Geographic Occurrence (not an all-inclusive list)

• Hill County, MT

• Carter County, MT

• Niobrara County, WY

• North Slope County, AK

Remarks

       For more information, see:

• Brett-Surman, M. K.  1997.  “Smithsonian Institution.”  In: The Encyclopedia of Dinosaurs.  Currie, P. J. and Padian, K. (Eds.).  Academic Press, p. 676.

• Carpenter, K.  1982.  Baby Dinosaurs from the Late Cretaceous Lance and Hell Creek Formations and a Description of a New Species of Theropod.  University of Wyoming, Contributions to Geology 20 (2), 130-131; fig. 8.

• Fisher, P. E.; Russell, D. A.; Stoskopf, M. K.; Barrick, R. E.; Hammer, M. & Kuzmitz, A. A.  2000.  Cardiovascular evidence for an intermediate or higher metabolic rate in an ornithischian dinosaur.  Science, 288: 503-505.

• Galton, P. M.  1975.  English Hypsilophodontid Dinosaurs (Reptilia, Ornithischia).  Palaeontology, 18(4), 741-752.

• Galton, P. M.  1995.  The species of the basal hypsilophodontid dinosaur Thescelosaurus Gilmore (Ornithischia: Ornithopoda) from the Late Cretaceous of North America.  Neues Jahrbuch fèur Geologie und Palèaontologie Abhandlungen, 198(3): 297-311.

• Gilmore, C. M.  1913.  A new dinosaur from the Lance Formation of Wyoming.  Smithsonian Miscellaneous Collections, 61(5): 1-5.

• Rich, T. H.; Gangloff, R. A. & Hammer, W. R. 1992.  “Polar Dinosaurs.”  In: The Encyclopedia of Dinosaurs.  Currie, P. J. and Padian, K. (Eds.).  Academic Press, p. 562-573.

• Weishampel, D. B. & Heinrich, R. E.  1992.  Systematics of Hypsilophodontidae and basal Iguanodontia (Dinosauria: Ornithopoda).  Historical Biology, 6, 159-184.

        Compare with:

• Hulke, J. W.  1882.  An Attempt at a Complete Osteology of Hypsilophodon foxii; a British Wealden Dinosaur. Philosophical Transactions of the Royal Society of London, 173, 1035-1062.