Also known as IGM-2996

Where: Nuevo Leon, Mexico (26.2° N, 100.9° W: paleocoordinates 31.8° N, 82.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Las Encinas Formation (Difunta Group), Early/Lower Paleocene (66.0 - 61.7 Ma)

• The stratigraphic position of the collection is within the upper third of the Las Encinas Formation (Maastrichtian to earliest Danian). The Cretaceous-Tertiary boundary is placed in the upper half of this formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal siltstone

Size class: macrofossils

Preservation: original calcite

Collection methods: quarrying,

• Studied material is deposited in the Museo de Paleontologia of the Instituto de Geologia, Universidad Nacional Autonoma de Mexico. Types are in the type collection and classified under the acronym IGM. The type locality is registered in the locality catalogue of the Museo de Paleontogia.

Primary reference: F. J. Vega, M.D.C. Perrilliat, and L.M. Mitre-Salazar. 1999. Paleocene ostreids from the Las Encinas Formation (Parras basin, Difunta Group), northeastern Mexico; stratigraphic implications. Geological Society of America Special Paper 340:105-110 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42468: authorized by Austin Hendy, entered by Austin Hendy on 29.07.2004

Creative Commons license: CC BY (attribution)