Crevasse Canyon Formation (Cretaceous to of the United States)

Where: Sierra County County, New Mexico (33.1° N, 107.3° W: paleocoordinates 39.6° N, 77.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Crevasse Canyon Formation (Mesaverde Group), Coniacian to Coniacian (89.8 - 72.1 Ma)

• Unspecified member. The lowermost member of Crevasse Canyon Formation is thought to be Coniacian–Santonian in age (Stopka et al. 2015) and the upper Ash Canyon member extends into the Campanian (e.g. Estrada-Ruiz et al. 2012).

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified sandstone

Size class: macrofossils

Collection methods: quarrying, mechanical,

Primary reference: R. P. Lozinsky, A. P. Hunt, D. L. Wolberg and S. G. Lucas. 1984. Late Cretaceous (Lancian) dinosaurs from the McRae Formation, Sierra County, New Mexico. New Mexico Geology 6(4):72-77 [B. Tiffney/J. Jacobson/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 24182: authorized by Bruce Tiffney, entered by James Jacobson on 01.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Coniferales - Cupressaceae
Sequoia montana coast redwood
Angiospermae
 Saxifragales - Cercidiphyllaceae
 Dilleniales - Dilleniaceae
 Laurales - Lauraceae
 Rosids - Moraceae
"Ficus" planicostata Lesquereux 1872 fig
 Fagales - Nothofagaceae
 Fagales - Fagaceae
cf. Quercus viburnifolia Lesquereux 1878 oak