La Casita Formation

La Casita Formation
Stratigraphic range: Kimmeridgian–Berriasian
Sedimentary folds of La Casita Formation in Aldama Municipality, Chihuahua, México.
TypeFormation
UnderliesTaraises Formation
OverliesZuloaga Formation
ThicknessAround 60 metres
Lithology
PrimarySiltstone
OtherShale
Location
CountryMexico

The La Casita Formation is a geologic formation in Mexico. It preserves fossils dating back to the Kimmeridgian to lowermost Berriasian.[1][2] It is laterally equivalent to the La Caja Formation[3] and the Pimienta Formation. The ichthyosaurs Jabalisaurus[4] and Acuetzpalin are known from the formation,[5] as well as the metriorhynchid Dakosaurus[6] and indeterminate pliosaurs.[7]

  1. ^ Zell, P., Stinnesbeck, W. (2016). "Salinites grossicostatum (Imlay, 1939) and S. finicostatum sp. nov. from the latest Tithonian (Late Jurassic) of northeastern Mexico". Boletín de la Sociedad Geológica Mexicana. 68 (2): 305–311. doi:10.18268/BSGM2016v68n2a8.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ Ocampo-Díaz., Yam Zul Ernesto (2014). "Procedencia de la Formación La Casita y la Arcosa Patula: implicaciones para la evolución tectono-magmática del NE de México entre el Carbonífero y el Jurásico" (PDF). Revista Mexicana de Ciencias Geológicas. 31: 45–63.
  3. ^ Zell, Patrick; Beckmann, Seija; Stinnesbeck, Wolfgang (2013-12-01). "Late Jurassic-earliest Cretaceous belemnites (Cephalopoda: Coleoidea) from northeastern Mexico and their palaeobiogeographic implications". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 270 (3): 325–341. doi:10.1127/0077-7749/2013/0374. ISSN 0077-7749.
  4. ^ Barrientos-Lara, J. I.; Alvarado-Ortega, J. (2021). "A new ophthalmosaurid (Ichthyosauria) from the Upper Kimmeridgian deposits of the La Casita formation, near Gómez Farías, Coahuila, northern Mexico". Journal of South American Earth Sciences. 111: Article 103499. Bibcode:2021JSAES.11103499B. doi:10.1016/j.jsames.2021.103499.
  5. ^ Barrientos-Lara, Jair Israel; Alvarado-Ortega, Jesús (March 2020). "Acuetzpalin carranzai gen et sp. nov. A new ophthalmosauridae (Ichthyosauria) from the Upper Jurassic of Durango, North Mexico". Journal of South American Earth Sciences. 98: 102456. Bibcode:2020JSAES..9802456B. doi:10.1016/j.jsames.2019.102456. S2CID 213102661.
  6. ^ M.-C. Buchy, W. Stinnesbeck, E. Frey and A. H. Gonzalez Gonzalez. 2007. Première mention du genre Dakosaurus (Crocodyliformes, Thalattosuchia) dans le Jurassique supérieur du Mexique. Bulletin de la Société Géologique de France 178(5):391-397
  7. ^ M.-C. Buchy, E. Frey, W. Stinnesback and J. G. Lopez-Oliva. 2006. An annotated catalogue of the Upper Jurassic (Kimmeridgian and Tithonian) marine reptiles in the collections of the Universidad Autonoma de Nuevo Leon, Facultad de Ciencias de la Tierra, Linares, Mexico. Oryctos 6:1-18