Jane Austen tracksite, Como Bluff (Jurassic of the United States)

Also known as Rock Creek

Where: Carbon County, Wyoming (41.9° N, 106.1° W: paleocoordinates 36.9° N, 51.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Morrison Formation, Kimmeridgian (157.3 - 152.1 Ma)

• near the base of the Morrison, only a few meters above contact with Sundance.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; burrowed, bioturbated, gray limestone and gray, green claystone

• "light grey limestone...The tracks are preserved as natural impressions, on an undulating surface which reveals local algal-stromatolitic and oncolytic features, occasional gastropods, silicified Equisetum stems and cylindrical root or burrow traces." Overlain by claystones/mudstones.

Size class: macrofossils

Preservation: mold/impression, trace

Collected by P. Redman, R. Bakker in 1995

Collection methods: surface (in situ),

Primary reference: B. Southwell, M. G. Lockley, R. T. Bakker, M. Connely, and P. Redman. 1996. The first report of a dinosaur tracksite from the Morrison Formation at Como Bluff. In M. Morales (ed.), The Continental Jurassic. Museum of Northern Arizona Bulletin 60:133-136 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 36270: authorized by Matthew Carrano, entered by Matthew Carrano on 22.01.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Reptilia
 Saurischia -
 Theropoda -
Theropoda indet. theropod
majority of tracks; resemble Grallator
 Neornithischia - Moyenisauropodidae
? Anomoepus sp. Hitchcock 1848 bird foot dinosaur
"resembles Anomoepus"
Equisetopsida
 Equisetales - Equisetaceae
Equisetum sp. Linnaeus