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Sponge Gully [Marjum Fm] (Cambrian of the United States)

Where: Millard County, Utah (39.3° N, 113.4° W: paleocoordinates 4.3° S, 91.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Marjum Formation, Middle Cambrian (513.0 - 501.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Marjum Fm. Stratigraphic relations are not discussed in text. AGE: Middle Cambrian. Justification not stated in text. STRATIGRAPHIC POSITION: From approximately 41-48 m above the Wheeler/Marjum contact.

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified mudstone

• ENVIRONMENT: Deposited in localized embayment below storm wave base, in basinal a environment, on the distal end of a carbonate ramp.
• SPECIFIC LITHOLOGY: Finely laminated mudstone. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression, soft parts

Reposited in the ROM, USNM, YPM

Collection methods: surface (in situ),

• COLLECTORS: Unknown, but possibly including B.S. Liverman, D.E. Briggs, S.L. Halgedahl, and R.J Jarrard. REPOSITORIES: KUMIP (Kansas), ROM (Ontario), USNM (Washington), UU (Utah), YPM (Yale).

Primary reference: D. E. G. Briggs, B. S. Lieberman, J. R. Hendricks, S. L. Halgedahl, and R. D. Jarrard. 2008. Middle Cambrian arthropods from Utah. Journal of Paleontology 82(2):238-254 [A. Hendy/A. Hendy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80124: authorized by Austin Hendy, entered by Austin Hendy on 05.04.2008

Creative Commons license: CC BY (attribution)