El Pelillal tracksite (Cretaceous to of Mexico)

Where: Coahuila, Mexico (26.1° N, 101.1° W: paleocoordinates 32.4° N, 76.8° W)

• coordinate stated in text

When: Muerto Formation (Difunta Group), Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

• "upper" part of formation

Environment/lithology: fluvial-deltaic; bioturbated, fine-grained sandstone

• "shallow freshwater or lacustrine"
• "reddish to light-brown, fine-grained, intensely bioturbated and ripple-marked sandstone that in some areas bears root traces"

Size class: macrofossils

Preservation: trace

Collected in 2000

Primary reference: R. A. Rodriguez-de la Rosa. 2003. Pterosaur tracks from the latest Campanian Cerro del Pueblo Formation of southeastern Coahuila, Mexico. In E. Buffetaut, J.-M. Mazin (eds.), Evolution and Palaeobiology of Pterosaurs. Geological Society, London, Special Publications 217:275-282 [R. Butler/R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92297: authorized by Richard Butler, entered by Richard Butler on 05.11.2009, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Synapsida - Chelichnopodidae
cf. Brasilichnium sp. Leonardi 1981 synapsid
Reptilia
 Crocodylia -
Crocodylia indet. Owen 1842 crocodilian
 Theropoda -
Theropoda indet. Marsh 1881 theropod
Aves
  -
Aves indet. Linnaeus 1758 bird
Reptilia
 Pterosauria - Pteraichnidae
Pteraichnus sp. Stokes 1957 pterosaur
 Testudines -
Testudines indet. Batsch 1788 turtle