The Queguay Formation is a geologic formation in Uruguay.[1]
| Queguay Formation | |
|---|---|
| Stratigraphic range: Late Cretaceous-Paleocene ~ | |
| Type | Geological formation |
| Overlies | Asencio Formation |
| Lithology | |
| Primary | limestone |
| Location | |
| Country |  Uruguay |
| Type section | |
| Named for | Queguay River, Uruguay |
It consists of a lithological group composed of calcareous, calc-siliceous and siliceous rocks, of pedogenic or subterranean origin. It is formed by white and whitish limestones, massive, sandy and brecciated.
Vertebrate paleofauna edit
Several fossil gastropods have been found here:
- Bahiensis priscus Cabrera & Martínez, 2012[2]
- Biomphalaria manya Cabrera & Martínez, 2018[3]
- Biomphalaria reversa Cabrera, Martínez & Norbis, 2016[4]
- Bulimulus frenguellii Cabrera et al., 2021[5]
- Eoborus charruanus Frenguelli, 1930[6]
- Pupoides gnocco Cabrera & Martínez, 2017[7]
See also edit
References edit
- ^ Stratigraphic profile of the Queguay Formation
- ^ Cabrera, F.; Martínez, S. (2012). "The oldest Odontostomidae (Mollusca: Gastropoda): Bahiensis priscus n. sp. (Paleocene, Uruguay)". Paläontologische Zeitschrift. 86 (4): 451–456. doi:10.1007/s12542-012-0145-1. S2CID 128881268.
- ^ Fernanda Cabrera; Sergio Martínez (2018). "A new species of Biomphalaria Preston, 1910 (Gastropoda, Planorbidae) from the Upper Cretaceous of Uruguay". Revista Brasileira de Paleontologia. 21 (3): 272–275. doi:10.4072/rbp.2018.3.08.
- ^ Fernanda Cabrera; Sergio Martínez; Walter Norbis (2016). "Recognition of Biomphalaria species (Gastropoda: Planorbidae) using the spiral growth variability, with description of a new fossil species". The Nautilus. 130 (1): 5–12.
- ^ Cabrera, F.; Breure, A. S. H.; Norbis, W.; Martínez, S. (2021). "Description of a new Late Cretaceous species of Bulimulus Leach, 1814 (Orthalicoidea: Bulimulidae) using geometric morphometric analysis". Journal of Molluscan Studies. 87 (2): eyab006. doi:10.1093/mollus/eyab006.
- ^ Frenguelli, J. (1930). Apuntes de Geología Uruguaya. Instituto de Geología y Perforaciones.
- ^ Cabrera, Fernanda; Martínez Chiappara, Sergio Agustín (2017). "Pupoides gnocco". Journal of Conchology.
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