La Cruz Formation, 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]
| 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 | 32.5°S 67.0°W |
| Approximate paleocoordinates | 33.3°S 34.0°W |
| Region | San Luis Province |
| Country | Argentina |
| Extent | Marayes-El Carrizal Basin |
  La Cruz Formation, Argentina (Argentina) | |
References
- Hualtarán at Fossilworks.org
- Gardini et al., 2009, p.554
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
Wikimedia Commons has media related to La Cruz Formation.
- 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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