THEROPODA, Osborn, 1906

Carpenter, Kenneth, 1982, Baby dinosaurs from the Late Cretaceous Lance and Hell Creek formations and a description of a new species of theropod, Contributions to Geology, University of Wyoming 20, pp. 123-134 : 130

THEROPODA incertae sedis

Fig. 6

Material: Teeth: UCM 39503 (UCMP-V5711) H 3.2 mm, W 1.8 mm ; UCM 45063 (UCMP-V5620) H 2.8 mm, W 1.8 mm ; UCMP 124986 (UCMP-V73087) H 1.6 mm, W 1.3 mm ; UCMP 124987 (UCMP-V73087) H 2.8 mm, W 2.2 mm ; and UCMP 124988 (UCMP-V73087) H 2.6 mm, W 2 mm .

Discussion: These teeth differ significantly from those discussed above, and may represent other theropod taxa. Further work on theropod teeth may permit some of these teeth to be assigned to known taxa. Most of the teeth have serrations both on the anterior and posterior edges.

Figures

Figures 1-11. Fig. 1, Dromaeosauridae, tooth, UCM 39502. Fig. 2a-h, Sauromithoides inequalis: 20,, buccal view of hatchling left dentary, UCM 41666; c, lingual view; e, dorsal view; b, buccal view of left dentary, NMC 8540 (cast); d, lingual view; f, dorsal view; g, lateral view of hatchling basioccipital, UCM 43218; and h, ventral view. Fig. 3a-c, teeth of Pectinodon bakkeri: a, holotype, UCM 38445; b, paratype, UCM 38446; and c, paratype, UCMP 73098. Fig. 4, Pararıychodon lacustris, tooth, UCMP 124990. Fig. 5a, b, Tyrannosauridae: a as lateral view of UCMP 119853; and b, posterior view. Fig. 6, Theropoda, tooth, UCMP 124987. Fig. 7a, b, tooth of Aublysodon mirandus: a! lateral view of UCMP 124406; and b, posterior view. Fig. 8, Thescelosaurus sp., tooth, UCMP 124973. Fig. 9, Hadrosauridae, tooth, UCM 45060. Fig. 10, Ceratopsidae, tooth, UCM 45057. Fig. 11, Ankylosaurus magniventris, tooth, UCMP 124399. Heavy bars to left of specimens = 2 mm.