Puerto Yeruá Formation
The Puerto Yeruá Formation is a Late Cretaceous geologic formation in the Paraná Basin, pertaining to Entre Ríos Province, Argentina. Dinosaur remains are among the fossils that have been recovered from the formation,[1] as well as egg fragments and fossilized wood.
| Puerto Yeruá Formation | |
|---|---|
| Stratigraphic range: Late Cretaceous | |
| Type | Geological formation |
| Lithology | |
| Primary | Sandstone, claystone |
| Other | Conglomerate |
| Location | |
| Coordinates | 32.2°S 58.1°W |
| Approximate paleocoordinates | 37.0°S 38.7°W |
| Region | Entre Ríos Province |
| Country |  Argentina |
| Extent | Paraná Basin |
| Type section | |
| Named for | Puerto Yeruá, Concordia Department |
  Puerto Yeruá Formation (Argentina) | |
Description
The formation comprises red claystones and grey sandstones, medium-thick, well silicified, partly conglomeratic, whitish and reddish color thanks to the presence of iron oxides and frequently calcareous cement. It was deposited in a lacustrine to floodplain humid environment with seasonal rainfall. Fossils of cf. Sphaerovum erbeni (Faveoloolithidae),[2] Theropoda indet.,[3] and Ankylosauria indet. are reported from the formation.[4][5] The formation has been correlated with the Guichón Formation of eastern Uruguay.[6]
Paleofauna
- Argyrosaurus superbus (lithostrotia indet.)
- Paraperseoxylon septatum[7]
See also
References
- Weishampel et al., 2004, pp.517-607
- De Valais et al., 2003, p.509
- De Valais et al., 2003, p.508
- De Valais et al., 2003, p.507
- Ita-i-cora at Fossilworks.org
- Soto et al., 2009, p.13
- Franco et al., 2015
Bibliography
- ; ; , and . 2015. The first record of Lauraceae fossil woods from the Cretaceous Puerto Yeruá Formation of eastern Argentina and palaeobiogeographic implications. Cretaceous Research 56. 388–398. Accessed 2019-03-26.
- ; ; ; ; , and . 2009. Nuevos hallazgos de restos de dinosaurios y consideraciones sobre la edad de la Formación Guichón - New findings of dinosaur remains and considerations on the age of the Guichón Formation. Revista Sociedad Uruguaya de Geología 15. 11–23. Accessed 2018-09-07.
- ; , and . 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
- ; , and . 2003. Nuevas evidencias de dinosaurios de la Formación Puerto Yeruá (Cretácico), provincia de Entre Ríos, Argentina - New evidence of dinosaurs from the Puerto Yeruá Formation (Cretaceous), Entre Ríos province, Argentina. Ameghiniana 40. 631-635. Accessed 2019-10-13.