LSUMG 747, Rattlesnake Mountain (Cretaceous of the United States)

Also known as VL-747

Where: Brewster County, Texas (29.2° N, 103.6° W: paleocoordinates 35.7° N, 77.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Upper Shale Member (Aguja Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• upper part of formation; bed is about 1.5 m thick

• bed-level stratigraphic resolution

Environment/lithology: "channel"; paleosol/pedogenic, nodular, gray, muddy sandstone

• "medium-dark grey (N4), muddy sandstones, with abundant clay balls, pedogenic carbonate nodules"

Size class: mesofossils

Collection methods: surface (float), surface (in situ),

Primary reference: J. T. Sankey. 2010. Faunal composition and significance of high-diversity, mixed bonebeds containing Agujaceratops mariscalensis and other dinosaurs, Aguja Formation (Upper Cretaceous), Big Bend, Texas. In M. J. Ryan, B. J. Chinnery-Allgeier, D. A. Eberth (eds.), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington 520-537 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 109657: authorized by Matthew Carrano, entered by Matthew Carrano on 20.05.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda - Ornithomimidae
Ornithomimidae indet. Marsh 1890 ornithomimid
LSUMG 747:19948, 17768-17769
 Theropoda - Dromaeosauridae
Saurornitholestes sp. Sues 1978 maniraptoran
LSUMG 747:8282