tracksite, 2 miles northeast of Golden (Cretaceous to of the United States)

Where: Jefferson County, Colorado (39.8° N, 105.2° W: paleocoordinates 38.9° N, 66.4° W)

• coordinate based on nearby landmark

When: Muddy Sandstone Formation (Dakota Group), Late/Upper Albian to Late/Upper Albian (105.3 - 93.5 Ma)

• Base of "Upper" Dakota sandstone.

• bed-level stratigraphic resolution

Environment/lithology: coastal; sandstone and sandy shale

• The trace fossil evidence suggests a mosaic of coastal plain depositional environments.

Size class: macrofossils

Preservation: mold/impression, trace

Collection methods: Museum: U. of Mo.

Primary reference: M. G. Mehl. 1931. Additions to the vertebrate record of the Dakota sandstone. American Journal of Science 21(125):441-452 [J. Alroy/S. Kuemmell/S. Kuemmell]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61430: authorized by John Alroy, entered by Susanna Kümmell on 12.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Ornithischia - Moyenisauropodidae
? Anomoepus sp.
? Anomoepus sp. Hitchcock 1848 ornithopod
regarded as dubious by Lockley et al. 1992