El Aguaje tracksite (Cretaceous of Mexico)

Also known as Arenisca Aguililla

Where: Michoacan, Mexico (19.0° N, 102.7° W: paleocoordinates 24.2° N, 76.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Arenisca Aguililla Formation, Late/Upper Cretaceous (100.5 - 66.0 Ma)

• = Arenisca Aguililla unit

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; hematitic sandstone

• "a limonite-rich, arkosic sandstone"

Size class: macrofossils

Preservation: trace

Collected by J. García Orozco, J. Ortiz Mendieta

Collection methods: surface (in situ),

Primary reference: I. Ferrusquía, J. Ortíz-Mendieta, and J. García-Orozco. 2002. Late Cretaceous dinosaur tracks from southwestern Mexico: its paleontologic significance. Journal of Vertebrate Paleontology 22(3 (suppl.)):52A-53A [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 143831: authorized by Matthew Carrano, entered by Matthew Carrano on 26.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda - Ornithomimidae
Ornithomimidae indet. Marsh 1890 ornithomimid
 Theropoda - Dromaeosauridae
Dromaeosauridae indet. Colbert and Russell 1969 maniraptoran
 Theropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
 Ornithischia -
Hadrosauroidea indet. Huene 1954 ornithopod
casts: CP-XXXVI to VP-XXXVIII