Las Jicoteas (lower horizon) (Cretaceous of Mexico)

Also known as El Carricito

Where: Coahuila, Mexico (28.9° N, 103.3° W: paleocoordinates 35.4° N, 76.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Aguja Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• correlated to upper member of Aguja Fm in nearby Big Bend, TX

• bed-level stratigraphic resolution

Environment/lithology: delta plain; green, yellow claystone

• "system was deltaic with a narrow prodelta seam with marshes, oxbows, and near shore lagoons with sandy or silty bars"

Size classes: macrofossils, mesofossils

Collection methods: surface (float), surface (in situ),

Primary reference: H. Rivera-Sylva, E. Frey, F. J. Palomino-Sánchez, J. R. Guzmán-Gutiérrez, and J. A. Oritz-Mendieta. 2009. Preliminary report on a Late Cretaceous vertebrate fossil assemblage in northwestern Coahuila, Mexico. Boletín de la Sociedad Geológica Mexicana 61(2):239-244 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 99139: authorized by Matthew Carrano, entered by Matthew Carrano on 28.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825 gar
CPC-315
Reptilia
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
CPC-316
 Testudines - Baenidae
Baenidae indet. Cope 1882 turtle
CPC-317
 Avetheropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
CPC-320
 Ornithischia - Nodosauridae
Nodosauridae indet. Marsh 1890 ornithischian
CPC 273; "Specimen C"
 Neornithischia - Hadrosauridae
cf. Kritosaurus sp. Brown 1910 hadrosaurine
"probably Kritosaurus"
 Loricata -
Crocodylia indet. crocodilian
CPC-319
 Crocodylia -
cf. Deinosuchus sp. Holland 1909 crocodilian
CPC-318