Cedarosaurus Quarry (DMNH 39045) (Cretaceous of the United States)

Where: Grand County, Utah (38.8° N, 109.6° W: paleocoordinates 37.2° N, 59.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Yellow Cat Member (Cedar Mountain Formation), Valanginian (139.8 - 132.9 Ma)

• Recent work indicates that the upper part of the Yellow Cat Member is Valanginian (Joeckel et al. 2020)

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; lithified, red mudstone and limestone

• "a hard, maroon mudstone layer...Overbank and lacustrine mudstones predominate [in the Yellow Cat Member], although local stringers of lacustrine limestone, lenses of sandstone, and calcareous nodules also occur."

Size class: macrofossils

Reposited in the DMNH

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

Primary reference: V. Tidwell, K. Carpenter, and W. Brooks. 1999. New sauropod from the Lower Cretaceous of Utah, USA. Oryctos 2:21-37 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48326: authorized by Matthew Carrano, entered by Matthew Carrano on 16.03.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Saurischia - Brachiosauridae
Cedarosaurus weiskopfae n. gen. n. sp.
Cedarosaurus weiskopfae n. gen. n. sp. Tidwell et al. 1999 brachiosaurid
DMNH 39045