Shoup Ranch Gulch (CAS 63643) (Cretaceous of the United States)

Also known as Bee Creek

Where: Shasta County, California (40.5° N, 122.6° W: paleocoordinates 40.8° N, 73.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Eotetragonites wintunius ammonoid zone, Chickabilly Member (Budden Canyon Formation), Late/Upper Aptian (122.5 - 113.0 Ma)

• "upper Chickabilly Member of the Budden Canyon Formation... Late Aptian Eotetragonites wintunius Zone"

• group of beds-level stratigraphic resolution

Environment/lithology: prodelta; lithified, bioturbated, nodular, gray mudstone

• "deep, quiet-water environment, several kilometers offshore and near a large deltaic environment"
• specimens are from "limestone nodules, commonly with abundant fragments of wood, many burrowed by teredinid bivalves... The predominant lithology is a dark-gray, massive mudstone that locally shows evidence of intensive bioturbation"

Size class: macrofossils

Preservation: concretion

Reposited in the CAS

Primary reference: D. J. Long, M. A. Murphy, and P. U. Rodda. 1993. A New World occurrence of Notidanodon lanceolatus (Chondrichthyes, Hexanchidae) and comments on hexanchid shark evolution. Journal of Paleontology 67(4):655-659 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90664: authorized by John Alroy, entered by John Alroy on 12.08.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Desmoceratidae
Melchiorites shastensis
Melchiorites shastensis Anderson 1938 ammonite