Marjum Formation, Locality 4 (Cambrian of the United States)

Also known as Kells Knolls Gulch

Where: Millard County, Utah (39.3° N, 113.3° W: paleocoordinates 4.3° S, 91.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Marjum Formation, Menevian (504.5 - 499.5 Ma)

• "Bathyuriscus fimbriatus zone of the lower Marjum Formation"

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, calcareous mudstone and lithified limestone

• part of the House Embayment, which is fault-bound on the passive margin

Size class: macrofossils

Primary reference: J. K. Rigby. 1983. Sponges of the Middle Cambrian Marjum Limestone from the House Range and Drum Mountains of Western Millard County, Utah. Journal of Paleontology 57(2):240-270 [S. Peters/S. Peters]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69395: authorized by John Alroy, entered by John Alroy on 25.02.2007, edited by Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hexactinellida
 Reticulosa - Protospongiidae
Diagoniella magna, Diagoniella cyathiformis
Diagoniella magna Rigby et al. 2010 glass sponge
Diagoniella cyathiformis Dawson and Hinde 1889 glass sponge
 Reticulosa -
? Valospongia gigantus
 Reticulosa - Hintzespongiidae
Hintzespongia bilamina
Hintzespongia bilamina Rigby and Gutschick 1976 glass sponge