Sierra de Buñuelas, near Gomez Farias (Jurassic of Mexico)

Where: Coahuila, Mexico (25.0° N, 101.0° W: paleocoordinates 20.7° N, 52.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: La Caja Formation, Early/Lower Tithonian (150.8 - 145.0 Ma)

• "Early Tithonian (Upper Jurassic) section of the La Caja Fm."

• bed-level stratigraphic resolution

Environment/lithology: offshore; phosphatic, silty shale

Size class: macrofossils

Primary reference: M.-C. Buchy, P. Vignaud, E. Frey, W. Stinnesbeck, and A. H. G. Gonzalez. 2006. A new thalattosuchian crocodyliform from the Tithonian (Upper Jurassic) of northeastern Mexico. Comptes Rendus Palevol 5:785-794 [M. Carrano/H. Street/H. Street]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 104859: authorized by Matthew Carrano, entered by Hallie Street on 11.02.2011, edited by Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Plesiosauria - Pliosauridae
Pliosauridae indet. Seeley 1874 plesiosaur
Incomplete skeleton (CEP1843) and isolated cervical centrum (CEP1850)
 Plesiosauria - Elasmosauridae
Elasmosauridae indet. Cope 1869 elasmosaur
Numerous isolated vertebrae
 Ichthyosauria - Ophthalmosauridae
Ophthalmosauridae indet. Andrews 1910 ichthyosaur
Numerous isolated vertebrae, including indicating very large individuals (e.g. CEP1811, 1813, 1818, 1819, 1822, 1826); partial postcrania (e.g. CEP1836)
Ophthalmosaurus icenicus Seeley 1874 ichthyosaur
Skull and mandible and associated partial postcranium (CEP1876)
 Loricata -
Thalattosuchia indet. Fraas 1901 marine crocodile
Partial rostrum (CEP1841); numerous isolated vertebrae and postcranial elements (e.g. CEP1810, 1816, 1855)
 Loricata - Metriorhynchidae
"Geosaurus saltillense n. sp." = Cricosaurus saltillensis, cf. Metriorhynchus sp.
"Geosaurus saltillense n. sp." = Cricosaurus saltillensis Buchy et al. 2006 marine crocodile
MUDE CEP1823, holotype poorly preserved skull, lacking snout, and postcranium
cf. Metriorhynchus sp. von Meyer 1830 marine crocodile
Partial to subcomplete skulls and postcranium (CEP1831, 1856, 1857); isolated teeth
Actinopteri
 Pachycormiformes - Pachycormidae
Pachycormidae indet. Woodward 1895
Mandible and postcranium (CEP1840)
 Aspidorhynchiformes - Aspidorhynchidae
Aspidorhynchidae indet. Bleeker 1859
Mandible (CEP1864)