Also known as Tlayua Quarry, Tepexi de Rodrìguez

Where: Puebla, Mexico (18.6° N, 97.9° W: paleocoordinates 16.5° N, 64.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Tlayúa Formation, Late/Upper Albian (105.3 - 99.6 Ma)

• Middle Member. Cantu-Chapa (1987) recognized the genus Hysteroceras, Mortoniceras, and cf. Anisoceras, which represent a typical late Albian ammonite assemblage of the European zone, being similar to the Mortoniceras inflatum zone (Applegate et al., 2006).

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, brown, yellow lime mudstone

Size class: macrofossils

Preservation: adpression

Collection methods: Repository: Paleontological Museum of the Instituto de Geologia, Universidad Nacional Autonomia de Mexico (IGM UNAM)

Primary reference: J. Alvarado-Ortega. 2004. Description and Relationships of a New Ichthyodectiform Fish from the Tlayúa Formation (Early Cretaceous: Albian), Puebla, Mexico. Journal of Vertebrate Paleontology 24(4):802-813 [S. Peters/S. McMullen/S. McMullen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133991: authorized by Shanan Peters, entered by Sharon McMullen on 01.10.2012, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)