NMNH Loc. 8286 (Cretaceous of the United States)

Also known as Silver City tracksite

Where: Grant County, New Mexico (32.8° N, 108.3° W: paleocoordinates 33.7° N, 72.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mancos Shale Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: paralic; fine-grained, gray, argillaceous sandstone and claystone

• "The track-bearing stratum is a 0.1-m. thick bed of olive-gray, argillaceous, fine-grained sandstone interbedded with shale, claystone, and siltstone."

Size class: macrofossils

Collected by C. Ferguson in 2007; reposited in the NMMNH

Collection methods: surface (in situ),

Primary reference: S. G. Lucas and C. A. Ferguson. 2012. Upper Cretaceous dinosaur footprints from Grant County, New Mexico. New Mexico Geological Society Guidebook, 63rd Field Conference, Warm Springs Region 499-502 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 137378: authorized by Matthew Carrano, entered by Matthew Carrano on 15.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia -
Theropoda indet. Marsh 1881 theropod
trackways, A and B