Cottonwood Beach tracksite, Alcova (Jurassic of the United States)

Where: Natrona County, Wyoming (42.5° N, 106.7° W: paleocoordinates 36.8° N, 50.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Windy Hill Sandstone Member (Sundance Formation), Oxfordian (163.5 - 157.3 Ma)

• member-level stratigraphic resolution

Environment/lithology: foreshore; glauconitic, ooidal, sandy limestone

• "foreshore swash zone, in a low gradient, mesotidal brach or migrating ridge"
• "sandy oƶsparite"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by T. Nickerson, T. Logue in 1976

Collection methods: surface (in situ),

Primary reference: M. Lockley, T. J. Logue, J. J. Moratalla, A. P. Hunt, R. J. Schultz and J. W. Robinson. 1995. The fossil trackway Pteraichnus is pterosaurian, not crocodilian: implications for the global distribution of pterosaur tracks. Ichnos 4:7-20 [R. Butler/R. Butler]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 92104: authorized by Richard Butler, entered by Richard Butler on 30.10.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pterosauria - Pteraichnidae
Pteraichnus sp. Stokes 1957 pterosaur
Pteraichnus stokesi n. sp. Lockley et al. 1995 pterosaur
UW 12368, trackway. UW 12363-67, 12399-12372