Red Fork Powder River Quarry A (Jurassic to of the United States)

Where: Johnson County, Wyoming (43.6° N, 106.8° W: paleocoordinates 39.3° N, 52.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Morrison Formation, Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• perhaps low in formation (Bakker 1996)

• bed-level stratigraphic resolution

Environment/lithology: pond; lithology not reported

• overbank pond environment

Size class: macrofossils

Collected by W. H. Utterback in 1903; reposited in the CM

Collection methods: quarrying, surface (in situ), mechanical,

• Collected by W. H. Utterback, 1903

Primary reference: W. J. Holland. 1905. The osteology of Diplodocus Marsh. With special reference to the restoration of the skeleton of Diplodocus carnegiei Hatcher, presented by Mr. Andrew Carnegie to the British Museum, May 12, 1905. Memoirs of the Carnegie Museum 2(6):225-264 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48565: authorized by Matthew Carrano, entered by Matthew Carrano on 23.03.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Saurischia - Diplodocidae
"Diplodocus hayi n. sp." = Galeamopus hayi
"Diplodocus hayi n. sp." = Galeamopus hayi Holland 1924 diplodocine
caudal series; also spelled D. carnegiei