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°12′S 58°06′W / 32.2°S 58.1°W |
| Approximate paleocoordinates | 37°00′S 38°42′W / 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
editThe 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
editSee also
editReferences
edit- ^ 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
edit- Franco, María Jimena; Brea, Mariana; Passeggi, Esteban; Pérez, Leandro Martín (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, doi:10.1016/j.cretres.2015.05.014, hdl:11336/42166, retrieved 2019-03-26
- Soto, M.; Perea, D.; Veroslavsky, G.; Rinderknecht, A.; Ubilla, M.; Lecuona, G. (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" (PDF), Revista Sociedad Uruguaya de Geología, 15: 11–23, retrieved 2018-09-07
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21
- de Valais, S.; Apesteguía, S.; Udrizar Sauthier, D. (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, retrieved 2019-10-13