Clayton Lake tracksite (Pajarito Formation) (Cretaceous of the United States)

Where: Union County, New Mexico (36.6° N, 103.3° W: paleocoordinates 35.1° N, 61.6° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Pajarito Formation (Dakota Group), Albian (113.0 - 100.5 Ma)

• 3 footprint-bearing horizons

• group of beds-level stratigraphic resolution

Environment/lithology: marine; bioturbated, fine-grained, cherty/siliceous sandstone

• "Sandstone, quartzose, fine grained, subangular, moderately well sorted, silica cement, some kaolinite, grayish orange (10 YR 7/4) to dark yellowish orange (10 YR 6/6), intensively bioturbated."

Size class: macrofossils

Preservation: trace

Collected in 1982

Collection methods: surface (in situ),

Primary reference: D. A. Thomas and D. D. Gillette. 1985. Ornithopod and theropod ichnofauna in the Dakota Formation, Clayton Lake State Park, northeastern New Mexico. Geological Society of America, Rocky Mountain Section, Abstracts with Programs 17(4):267 [M. Carrano/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 55283: authorized by Matthew Carrano, entered by Kaitlin Maguire on 05.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Ornithopoda includes ichnogenus Amblydactylus
 Theropoda -
Theropoda indet. theropod
 Neornithischia -
Ornithopoda indet. bird foot dinosaur