Packard Formation

Packard Formation
Stratigraphic range: Mesozoic
Type	Geological formation
Unit of	Cabullona Group
Location
Country	Mexico

The Packard Formation is a Mesozoic geologic formation. ^[1] The formation may be from the Kirtlandian land vertebrate age. ^[2] It has a similar fauna to the Corral de Enmedio Formation. ^[2]

Paleofauna

The fragmentary remains of indeterminate lepisosteids, trionychids, eusuchians, hadrosaurids, and ceratopsids are known from the Packard Formation.

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Vertebrates of the Packard Formation
Genus	Species	Location	Stratigraphic position	Abundance	Notes	Images
Albertosaurus [3]	Indeterminate [3]					Albertosaurus
Chamops [2]	C. segnis [2]
Melvius [2]	Indeterminate [2]
Tototlmimus [4]	T. packardensis [4]	Cabullona Group

See also

• Earth sciences portal
• Paleontology portal
• Dinosaurs portal

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with few dinosaur genera

Footnotes

1. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
2. "Corral De Enmedio and Packard Formations, Cabollona Group, Sonora, Mexico," in Sullivan and Lucas (2006). Page 16.
3. Listed as "cf. Albertosaurus sp." in "Corral De Enmedio and Packard Formations, Cabollona Group, Sonora, Mexico," in Sullivan and Lucas (2006). Page 16.
4. Claudia Inés Serrano-Brañas; Esperanza Torres-Rodríguez; Paola Carolina Reyes-Luna; Ixchel González-Ramírez; Carlos González-Leóne (2016). "A new ornithomimid dinosaur from the Upper Cretaceous Packard Shale Formation (Cabullona Group) Sonora, México". Cretaceous Research. 58: 49–62. doi: 10.1016/j.cretres.2015.08.013 .

References

• Sullivan, R.M., and Lucas, S.G. 2006. "The Kirtlandian land-vertebrate "age" – faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America ^{[ permanent dead link ]}." New Mexico Museum of Natural History and Science, Bulletin 35:7-29.
• Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp.  ISBN   0-520-24209-2.