Where: Chihuahua, Mexico (28.6° N, 106.1° W: paleocoordinates 35.7° N, 79.9° W)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Aguja Formation, Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithology not reported

Size class: microfossils

Collection methods: bulk

Primary reference: L. Martin-Medrano and P. Garcia-Barrera. 2006. Fossil Ophiuroids of Mexico. In F. J. Vega, T. G. Nybor, M. D. C. Perrillat, M. Montellano-Ballesteros, S. R. S. Cevallos-Ferriz, S. A. Quiroz-Barroso (eds.), Topics in Geobiology 24:115-131 [L. Villier/J. Millet/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 80284: authorized by Loic Villier, entered by Julien Millet on 10.04.2008

Creative Commons license: CC BY (attribution)