Laguna Colorada Formation

Laguna Colorada Formation
Stratigraphic range: Early Jurassic <192.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Unit of	El Tranquilo Group
Lithology
Primary	Siltstone
Other	dolomite
Location
Coordinates	48.1°S 68.3°W / -48.1; -68.3
Approximate paleocoordinates	56.7°S 24.8°W / -56.7; -24.8
Region	Santa Cruz Province
Country	Argentina
Extent	Austral Basin
Laguna Colorada Formation (Argentina)

The Laguna Colorada Formation is a geological formation of the Austral Basin in Patagonia, Argentina. The formation belongs to the El Tranquilo Group and dates back to the Early Jurassic, with a maximum age of 192.78 ± 0.14 Ma.^[1][2]

Vertebrate paleofauna

Dinosaur tracks geographically located in Santa Cruz Province, Argentina.^[1]

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.

Dinosaurs

Dinosaurs of the Laguna Colorada Formation
Genus	Species	Location	Material	Notes	Images
Mussaurus[1][3]	M. patagonicus	Santa Cruz Province	"More than [ten] fragmentary to complete skeletons, [four] skulls, juvenile to adult"	A anchisaurian sauropodomorph
Heterodontosauridae indet.[1]	Ineterminate	Santa Cruz Province

See also

• List of dinosaur-bearing rock formations

References

1. Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 527–528. ISBN 0-520-24209-2.
2. Pol, Diego; Mancuso, Adriana C.; Smith, Roger M. H.; Marsicano, Claudia A.; Ramezani, Jahandar; Cerda, Ignacio A.; Otero, Alejandro; Fernandez, Vincent (2021-10-21). "Earliest evidence of herd-living and age segregation amongst dinosaurs". Scientific Reports. 11 (1): 20023. Bibcode:2021NatSR..1120023P. doi:10.1038/s41598-021-99176-1. ISSN 2045-2322. PMC 8531321. PMID 34675327. S2CID 239455925.
3. "Table 12.1," in Weishampel, et al. (2004). Page 235.

Further reading

• A. M. Báez and C. A. Marsicano. 1998. A heterodontosaurian ornithischian in the Upper Triassic of southern Patagonia?. Gondwana 10: Event Stratigraphy of Gondwana, Cape Town, South Africa 27:14-15
• J. F. Bonaparte and M. Vince. 1979. El hallazgo del primer nido de dinosaurios triasicos, (Saurischia, Prosauropoda), Triasico Superior de Patagonia, Argentina [The discovery of the first nest of Triassic dinosaurs (Saurischia, Prosauropoda,) from the Upper Triassic of Patagonia, Argentina]. Ameghiniana 16(1-2):173-182
• R. M. Casamiquela. 1964. Sobre el hallazgo de dinosaurios triásicos en la Prov. de Santa Cruz [On the discovery of Triassic dinosaurs in Santa Cruz Prov.]. Argentina Austral 35:10-11
• D. Pol and J. E. Powell. 2007. Skull anatomy of Mussaurus patagonicus (Dinosauria: Sauropodomorpha) from the Late Triassic of Patagonia. Historical Biology 19(1):125-144