ammonites
Dutton Creek Basin (Jurassic to of the United States)

Where: Fremont County, Wyoming (42.8° N, 107.6° W: paleocoordinates 37.2° N, 51.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Redwater Shale Member (Sundance Formation), Late/Upper Callovian to Late/Upper Callovian (164.7 - 155.7 Ma)

• "uppermost band of the Shirley stage" = upper Redwater Shale Mb of Sundance Fm

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by W. H. Reed in 1905; reposited in the UW

Primary reference: C. W. Gilmore. 1907. A new species of Baptanodon from the Jurassic of Wyoming. The American Journal of Science, series 4 23(135):193-198 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 97635: authorized by Matt Carrano, entered by Matt Carrano on 17.08.2010