Lotena Formation
The Lotena Formation is a geologic formation dated from the Late Callovian to Early Oxfordian in the Neuquén Basin in Mendoza Province, Argentina. The formation, first defined by Weaver in 1931 and named after Cerro Lotena, consists of fluvial conglomerates, calcareous sandstones and marine limestones and shales. The Lotena Formation is overlain by the La Manga Formation and overlies the Lajas Formation of the Cuyo Group. Initially, the fossil find of the pterosaur Herbstosaurus pigmaeus was reported from the formation, but this fossil was found in the younger Vaca Muerta. The formation is a reservoir rock in the Neuquén Basin.
See also
- Los Molles Formation, contemporaneous formation of the Neuquén Basin
- Cañadón Calcáreo Formation, contemporaneous formation of the Cañadón Asfalto Basin
References
- ^ Lotena Formation at Fossilworks.org
- ^ Zanettini et al., 2010, p.25
- ^ Veiga et al., 2011, p.174
- ^ Veiga et al., 2011, p.178
- ^ Wellnhofer, 1991, p.81
- ^ Herbstosaurus at Fossilworks.org
Bibliography
- Veiga, Gonzalo D.; Schwarz, Ernesto; Spalletti, Luis A. (2011), "Análisis estratigráfico de la Formación Lotena (Calloviano superior-Oxfordiano inferior) en la Cuenca Neuquina Central, República Argentina - Integración de información de afloramientos y subsuelo" (PDF), Andean Geology, 38: 171–197, doi:10.5027/andgeoV38n1-a10, retrieved 2017-08-03
- Wellnhofer, Peter (1991), Summary of Middle Jurassic Pterosaurs in The Illustrated Encyclopedia of Pterosaurs, Salamander Books Limited, London, UK, pp. 1–192, ISBN 0-86101-566-5
- Zanettini, Juan Carlos M.; Leanza, Héctor A.; Giusiano, Adolfo (2010), Programa Nacional de Cartas Geológicas de la República Argentina 1:250,000 - Hoja Geológica 3972-II Loncopué, SEGEMAR, pp. 1–93, retrieved 2017-08-03