ammonites
USGS 5070, Thomas Fork (Permian of the United States)

Where: Wyoming (42.3° N, 111.0° W: paleocoordinates 14.9° N, 32.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Meade Peak Member (Phosphoria Formation), Roadian (272.5 - 268.0 Ma)

• Twenty feet above main phosphate bed in phosphate series

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, phosphatic shale

Size class: macrofossils

Primary reference: G. H. Girty. 1910. The fauna of the Phosphate beds of the Park City Formation. United States Geological Survey Bulletin 436:1-82 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108931: authorized by Matthew Clapham, entered by Matthew Clapham on 08.05.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)