Loomis Creek, Snake Mountains (Silurian of the United States)

Where: Elko County, Nevada (41.4° N, 114.9° W: paleocoordinates 11.6° S, 64.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Roberts Mountains Formation, Ludlow (427.4 - 423.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; siltstone

• "Because of the fragmental nature of the sponges and their alignments, they appear to be part of transported sessile benthic assemblages. They probably grew far from where they accumulated."

Size class: macrofossils

Primary reference: J. K. Rigby and B. J. Maher. 1995. Age of the hexactinellid beds of the Roberts Mountains Formation, Snake Mountains, Nevada, and additions to the Silurian sponge fauna. Journal of Paleontology 69(6):1020-1029 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 729: authorized by John Alroy, entered by Mike Sommers on 02.03.1999, edited by Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Monograptidae
Bohemograptus bohemicus tenuis
Bohemograptus bohemicus tenuis Boucek 1936 graptolite
Hexactinellida
 Lyssacinosa - Stiodermatidae
Divaricospongia dilata n. gen. n. sp.
Divaricospongia dilata n. gen. n. sp. Rigby and Maher 1995 glass sponge
 Lyssacinosa - Brachiospongiidae
Fistellaspongia inclinata n. gen. n. sp.
Fistellaspongia inclinata n. gen. n. sp. Rigby and Maher 1995 glass sponge
 Reticulosa - Protospongiidae
? Protospongia sp., Gabelia fascicula, Gabelia giganta, Gabelia intermedia n. sp., Gabelia pedunculus
? Protospongia sp. Salter 1864 glass sponge
Gabelia fascicula glass sponge
Gabelia giganta glass sponge
Gabelia intermedia n. sp. Rigby and Maher 1995 glass sponge
Gabelia pedunculus Rigby and Murphy 1983 glass sponge