Rancho Soledad tracksite (PASAC) (Cretaceous of Mexico)

Where: Coahuila, Mexico (27.8° N, 101.2° W: paleocoordinates 34.2° N, 80.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Escondido Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; calcareous sandstone and silty marl

• Silty marls and marly clays. Some surfaces show ripple marks. Ripple marks are asymetrical and were formed by a current coming from NW. Also described as "fine-grained calcareous sandstone" for the track bed itself.

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by PASAC in 2003

Collection methods: surface (in situ), mechanical, peel or thin section,

Primary reference: E. Jiménez-Hidalgo, R. Hernández-Rivera, and L. Ortega-Palacios. 2004. New Late Cretaceous vertebrate tracks from the Sabinas basin, northeastern Coahuila, northeastern Mexico. Journal of Vertebrate Paleontology 24(3, suppl.):76A [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 53915: authorized by Matthew Carrano, entered by Kaitlin Maguire on 16.09.2005, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Theropoda -
Theropoda indet. theropod
?tyrannosaur
 Saurischia -
 Pterosauria -
 Ichnofossils -
Kouphichnium sp. Nopcsa 1923