Where: Coahuila, Mexico (25.4° N, 101.3° W: paleocoordinates 31.6° N, 75.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cerro del Pueblo Formation (Difunta Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• "Unit I"

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; red siliciclastic sediments

Size class: macrofossils

Collected by J. A. Wilson, E. H. Colbert in 1956

Collection methods: surface (float),

• found "during an excursion of the XXth International Geological Congress"

Primary reference: G. E. Murray, D. R. Boyd, C. O. Durham, R. H. Forde, R. M. Lawrence, P. D. Lewis, K. G. Martin, A. E. Weidie, W. P. Wilbert and J. A. Wolleben. 1960. Stratigraphy of Difunta Group, Parras Basin, states of Coahuila and Nuevo Leon, Mexico. In A. Rozenkrantz & F. Brotzen (ed.), International Geological Congress, Report of the 21st Session. Part 5: The Cretaceous-Tertiary Boundary 82-96 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 187323: authorized by Matthew Carrano, entered by Matthew Carrano on 20.07.2017

Creative Commons license: CC BY (attribution)