Re: Mystery theropod from Argentina

[Mickey Mortimer <Mickey_Mortimer111@msn.com>]

Tim Williams wrote-

> We have tyrannosaur material from Mexico?  (Or do you mean _Labocania_?)

As listed on
 http://students.washington.edu/eoraptor/Tyrannosauroidea.html -

undescribed Tyrannosauridae (Westgate, Brown and Pittman, 2002)
Campanian, Late Cretaceous
San Carlos Formation, Mexico
Reference- Westgate, Brown and Pittman, 2002. Discovery of dinosaur remains
in coastal deposits near Ojinaga, Mexico. JVP 22(3) 118A-119A.
undescribed Tyrannosauridae (Lehman, 1989)
Late Campanian, Late Cretaceous
Aguja Formation, Mexico; Aguja Formation, Texas, US
Material- (LSUMG 489:5580) tooth fragment (Sankey, 2001)
(TMM 42534) (Lehman, 1989)
teeth, limb elements (Westgate et al., 2002)
References- Lehman, 1985. Stratigraphy, sedimentology, and paleontology of
Upper Cretaceous (Campanian-Maastrichtian) sedimentary rocks in Trans-Pecos,
Texas. Unpublished Ph.D. dissertation, University of Texas at Austin,
Austin, 299 p.
Standhardt, 1986. Vertebrate paleontology of the Cretaceous/Tertiary
transition of Big Bend National Park, Texas. Unpublished Ph.D. dissertation,
Louisiana State University, Baton Rouge, 298 p.
Lehman, 1989. Chasmosaurus mariscalensis, sp. nov., a new ceratopsian
dinosaur from Texas. Journal of Vertebrate Paleontology, 9:137-162.
Rowe, Ciffelli, Lehman and Weil, 1992. The Campanian Terlingua local fauna,
with a summary of other vertebrates from the Aguja Formation, Trans-Pecos,
Texas. Journal of Vertebrate Paleontology, 12:472-493.
Sankey, 2001. Late Campanian Southern dinosaurs, Aguja Formation, Big Bend,
Texas. Journal of Paleontology. 75(1) 208-215.
Westgate, Pittman, Brown and Cope, 2002. Continued excavation of the first
dinosaur community from Chihuahua, Mexico. JVP 22(3) 118A.

undescribed Tyrannosauridae (Ford and Chure, 2002)
Late Campanian, Late Cretaceous
El Gallo Formation, Mexico
Material- (IGM 4302; = LACM 20886) (juvenile) tooth
(IGM coll.; = LACM 7253/28999) (juvenile) tooth
(IGM coll.; = LACM 3294/24580) (juvenile) tooth
teeth (Rodriguez, 1999; Rodriguez de la Rosa and Aranda-Manteca, 2000)
Description- These are laterally compressed and they are serrated on both
carinae. Denticles are chisel-shaped, decrease in size toward the base and
tip of the tooth, and the tyrannosaurid blood grooves run obliquely from
between the denticles and extend toward the tooth base (Rodriguez, 1999).
Comments- Supposedly a potentially new taxon.
References- Rodriguez, 1999. Theropod teeth from the Late Cretaceous El
Gallo Formation, Baja California, Mexico. VII International Symposium on
Mesozoic Terrestrial Ecosystems, abstracts.
Ford, T. L., and Chure, D. J., 2002, "Aublysodon" teeth from the El Gallo
Formation (Late Campanian) of Baja California: the southernmost record of
tyrannosauroid theropods: In: Western Association of Vertebrate
Paleontologists with Mesa Southwest Museum and Southwest Paleontological
Society of Mesa, Arizona, First Meeting of the New Millennium, Mesa
Southwest Museum Bulletin n. 8, p. 75-89

undescribed tyrannosaurid (Molnar, 1974)
Campanian, Late Cretaceous
La Bocana Roja Formation, Mexico
Material- (LACM 28237) several teeth, metatarsal
material (Hernandez-Rivera, 1997)

undescribed tyrannosaurid (Murry, Boyd, Wolleben and Wilson, 1960)
Late Campanian-Early Maastrichtian (Brinkman et al., 2002), Late Cretaceous
Cerro del Pueblo Formation, Mexico

undescribed Tyrannosauridae (Lucas, Kues and Gonzalez-Leon, 1995)
Late Campanian-Maastrichtian, Late Cretaceous
Corral de Enmedio Formation, Mexico
Material- (IRGNM-210) tooth
(IRGNM-211) partial hindlimb including partial tibia, fibula, phalanges
(IRGNM coll.) teeth, elements

Mickey Mortimer
Undergraduate, Earth and Space Sciences
University of Washington
The Theropod Database - http://students.washington.edu/eoraptor/Home.html