Bear Butte Quarry (Jurassic of the United States)

Also known as SD-1

Where: Meade County, South Dakota (44.5° N, 103.3° W: paleocoordinates 39.9° N, 49.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Tithonian (152.1 - 145.0 Ma)

• near top of formation

• bed-level stratigraphic resolution

Environment/lithology: dry floodplain; gray, green claystone

• well-drained floodplain
• "a light, green-gray claystone"

Size class: macrofossils

Collected in 1984

Primary reference: J. R. Foster. 1996. Fossil vertebrate localities in the Morrison Formation (Upper Jurassic) of western South Dakota. In M. Morales (ed.), The Continental Jurassic. Museum of Northern Arizona Bulletin 60:255-263 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 49625: authorized by Matthew Carrano, entered by Matthew Carrano on 20.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Saurischia - Diplodocidae
Apatosaurus sp. Marsh 1877 diplodocid