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
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 and Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Hexactinellida | |
? Protospongia sp., Gabelia fascicula1, Gabelia giganta1, Gabelia intermedia n. sp., Gabelia pedunculus1
? Protospongia sp. Salter 1864 glass sponge
Gabelia intermedia n. sp. Rigby and Maher 1995 glass sponge | |
Divaricospongia dilata n. gen. n. sp.
Divaricospongia dilata n. gen. n. sp. Rigby and Maher 1995 glass sponge | |
Fistellaspongia inclinata n. gen. n. sp.
Fistellaspongia inclinata n. gen. n. sp. Rigby and Maher 1995 glass sponge | |
Pterobranchia | |
"Bohemograptus tenuis" = Bohemograptus bohemicus tenuis2
|