ammonites
USGS 19020-PC, Terrace Mountains (Permian of the United States)

Where: Utah (41.3° N, 113.2° W: paleocoordinates 15.0° N, 34.0° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale

• Poorly exposed shale section

Size classes: macrofossils, mesofossils

Preservation: replaced with limonite

Primary reference: M. Gordon. 1971. Primitive squid gladii from the Permian of Utah. United States Geological Survey Professional Paper 750C:C34-C38 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95043: authorized by Matthew Clapham, entered by Matthew Clapham on 04.04.2010

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