La Cruz Formation, Argentina

La Cruz Formation Stratigraphic range: Aptian
Type	Geological formation
Unit of	El Gigante Group
Underlies	Lagarcito Formation
Overlies	El Toscal Formation
Lithology
Primary	Sandstone
Other	Conglomerate
Location
Coordinates	[ ⚑ ] : 32°30′S 67°00′W / 32.5°S 67.0°W / -32.5; -67.0
Paleocoordinates	[ ⚑ ] 33°18′S 34°00′W / 33.3°S 34.0°W / -33.3; -34.0
Region	San Luis Province
Country	Argentina
Extent	Marayes-El Carrizal Basin
La Cruz Formation, Argentina (Argentina)

The La Cruz Formation is an Aptian geologic formation in Argentina . Pterosaur fossils of Pterodaustro guinazui and Puntanipterus globosus and fish fossils of Austrolepidotes cuyanus, Pleuropholidae indet and Neosemionotus puntanus have been recovered from the formation.^[1] The formation, the uppermost unit of the El Gigante Group, overlies the El Toscal Formation, and is overlain by the Lagarcito Formation. The unit comprises sandstones and conglomerates, deposited in an alluvial plain to fluvial environment.^[2]

See also

• List of pterosaur-bearing stratigraphic units

References

Bibliography

• Gardini, Carlos; David Rivarola; Maximiliano Agüera, and Gerónimo Candela. 2009. Estructura de la región Sierra de Guayaguas-Marayes, Provincias de San Juan y San Luis. Revista de la Asociación Geológica Argentina 65. 551–565. Accessed 2018-09-08.

Further reading

• J. F. Bonaparte and T. M. Sánchez. 1975. Restos de un pterosaurio, Puntanipterus globosus de la Formación La Cruz, Provincia de San Luis, Argentina [Remains of a pterosaur, Puntanipterus globosus from the La Cruz Formation, San Luis Province, Argentina]. Actas del Primer Congreso Argentino de Paleontologia y Bioestratigrafia, Tucumán 2:105-113

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