Ejido Presa de San Antonio (Coah 14) (Cretaceous of Mexico)

Also known as La Presa; SPA-88-9 quarry, Ejido Presa San Antonio

Where: Coahuila, Mexico (25.5° N, 101.7° W: paleocoordinates 31.7° N, 76.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Cerro del Pueblo Formation (Difunta Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• middle part of formation

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; mudstone

Size class: macrofossils

Preservation: soft parts

Collected by UNAM, R. López in 1980, 1986, 1988–1989

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

Primary reference: R. A. Rodriguez-de la Rosa and S. R. S. Cevallos-Ferriz. 1994. Upper Cretaceous Zingiberalean fruits with in situ seeds from Southeastern Coahuila, Mexico. International Journal of Plant Sciences 155(6):786-805 [H. Wang/M. Arakaki/J. Cassara]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 24258: authorized by John Alroy, entered by John Alroy on 03.08.2002, edited by Monica Arakaki, Jason Cassara and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Insecta
 Dicondylia -
Odonata indet.4 Fabricius 1793 dragonfly
insect wing
Bivalvia
  -
Bivalvia indet.4 Linnaeus 1758 clam
Reptilia
 Ornithischia - Ceratopsidae
Ceratopsidae indet.2 Marsh 1888 ceratopsid
sacral vertebrae, two proximal end femora and proximal end ulna, IGM-MG
Chasmosaurinae indet.2 Lambe 1915 ceratopsid
CPC 278
 Ornithischia - Hadrosauridae
Hadrosauridae indet.3 Cope 1869 hadrosaurid
tooth, incomplete maxilla (Coah 14)
Saurolophinae indet.2 Brown 1914 hadrosaurid
Coah 14-2/1
Saurolophinae indet.2 Brown 1914 hadrosaurid
Coah 14-3/1
Corythosaurini indet.6 Glut 1997 lambeosaurine
Coah 14-1/3-6
Latirhinus uitstlani n. gen. n. sp.1 Prieto-Márquez and Serrano Brañas 2012 lambeosaurine
field no. SPA-88-9 ("Isauria"; Coah 14-1/1; IGM 6583)
 Theropoda -
 Testudines - Kinosternoidea
cf. Hoplochelys sp.5 Hay 1908 mud turtle
 Testudines - Trionychidae
Trionychidae indet.5 Gray 1825 softshell turtle