Queguay Formation

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Queguay Formation
Stratigraphic range: Late Cretaceous-Paleocene
~100.5–56.0  Ma
Type Geological formation
Overlies Asencio Formation
Lithology
Primary limestone
Location
Country Uruguay
Type section
Named for Queguay River, Uruguay

The Queguay Formation is a geologic formation in Uruguay. [1]

Contents

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

Several fossil gastropods have been found here:

See also

References

  1. ↑ Stratigraphic profile of the Queguay Formation
  2. ↑ 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.
  3. ↑ 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 . hdl: 20.500.12008/22019 .
  4. ↑ 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.
  5. ↑ 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.
  6. ↑ Frenguelli, J. (1930). Apuntes de Geología Uruguaya. Instituto de Geología y Perforaciones.
  7. ↑ Cabrera, Fernanda; Martínez Chiappara, Sergio Agustín (2017). "Pupoides gnocco". Journal of Conchology .



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