Tyrannosaurus rex from the McRae Formation (Lancian, Upper Cretaceous), Elephant Butte Reservoir, Sierra County, New Mexico Author Gillette D. D. Author Wolberg D. L. Author Hunt A. P. text 1986 New Mexico Geological Society Guidebook Editor Clemons R. E. Editor , King W. E. Editor Mack G. H. Editor Zidek J. New Mexico Geological Society, 37 th Annual Fall Field Conference, Truth or Consequences Region 235 238 book chapter 25347 10.5281/zenodo.3466581 c7e7b46f-ec6b-42d4-8bba-1aa7aa3031d9 3466511

TABLE 1 —Serration counts (per 5 mm of edge length) for teeth of NMMNH P- 1013 - 1 compared to other camosaurs (Ostrom 1969).

	Anterior	Posterior
NMMNH P-1013-1
Mandibular tooth6	7—8.5	7-9
Mandibular tooth7	6-8	7.5-8
Mandibular or maxıllary tooth,posıtıon uncertaın	6.75-10.5	8.75—1.0.5
Allosaurus Ceratosaurus	10-12	10-12
	10	10
Gorgosaurus	12-13	9-12
Tyrannosaurus	8-9	6.5-8