ammonites
YPM 64-57, Edwards Ranch (Cretaceous of the United States)

Where: Carbon County, Montana (45.2° N, 108.8° W: paleocoordinates 44.6° N, 64.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Himes Member (Cloverly Formation), Albian (112.0 - 99.6 Ma)

• upper part of member = Ostrom's Unit VII; 4 ft above Unit VI

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; claystone

Size class: macrofossils

Collected by J. H. Ostrom in 1964; reposited in the YPM

Collection methods: quarrying, mechanical,

Primary reference: J. H. Ostrom. 1970. Stratigraphy and paleontology of the Cloverly Formation (Lower Cretaceous) of the Bighorn Basin area, Wyoming and Montana. Peabody Museum Bulletin 35:1-234 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 50701: authorized by Matt Carrano, entered by Matt Carrano on 19.05.2005