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
- List of dinosaur-bearing rock formations
- Guichón Formation
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
- Franco, María Jimena; Mariana Brea; Esteban Passeggi, and Leandro Martín Pérez. 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.
- Soto, M.; D. Perea; G. Veroslavsky; A. Rinderknecht; M. Ubilla, and G. Lecuona. 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.
- Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
- de Valais, S.; S. Apesteguía, and D. Udrizar Sauthier. 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.