Marjum Formation, Locality 3 (Cambrian of the United States)

Where: Utah (39.2° N, 113.3° W)

• Paleocoordinates: 31.1° N, 131.2° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Bolaspidella Zone; Marjuman; 180-200 feet above base of Marjum

• 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 56187: authorized by Shanan Peters, entered by Shanan Peters on 15.11.2005, edited by John Alroy

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Hexactinellida
 Reticulosa - Protospongiidae
Protospongia ? elongata, Testiispongia venula n. gen. n. sp., Diagoniella sp., Diagoniella hindei
Testiispongia venula n. gen. n. sp. glass sponge
Diagoniella sp. Rauff 1894 glass sponge
Diagoniella hindei Walcott 1920 glass sponge
 Reticulosa -
Valospongia gigantis n. sp.
Valospongia gigantis n. sp. glass sponge
 Reticulosa - Hintzespongiidae
Hintzespongia bilamina
Hintzespongia bilamina Rigby and Gutschick 1976 glass sponge
Demospongiae
 Protomonaxonida - Choiidae
Choia utahensis, Choia carteri
Choia utahensis Walcott 1920 demosponge
Choia carteri Walcott 1920 demosponge
 Protomonaxonida - Hamptoniidae
Hamptonia bowerbanki
Hamptonia bowerbanki Walcott 1920 demosponge