Where: Elko County, Nevada (41.3° N, 116.1° W: paleocoordinates 16.2° S, 60.6° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Roberts Mountains Formation, Lochkovian (419.2 - 410.8 Ma)
• upper part of the formation, Roberts Mountains Formation is Late Silurian-Early Devonian, exact stratigraphic position of sponges unknown
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; lithified, silty limestone and lithified, calcareous siltstone
Size class: macrofossils
Primary reference: D. Mehl, J. K. Rigby, and S. R. Holmes. 1993. Hexactinellid sponges from the Silurian-Devonian Roberts Mountains Formation in Nevada and hypotheses of hexactine-stauractine origin. Geology Studies Brigham Young University 39:101-124 [W. Kiessling/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 120531: authorized by Wolfgang Kiessling, entered by Uta Merkel on 16.11.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Hexactinellida | |
Gabelia pedunculus, "Diagoniella nevadensis" = Hexatractiella nevadensis, Protospongia "sp. 2", Protospongia "sp. 1", Protospongia conica, Protospongia spina n. sp.
Gabelia pedunculus Rigby and Murphy 1983 glass sponge
"Diagoniella nevadensis" = Hexatractiella nevadensis Rigby and Stuart 1988 glass sponge
Protospongia "sp. 2" Salter 1864 glass sponge
Protospongia "sp. 1" Salter 1864 glass sponge
Protospongia conica Rigby and Harris 1979 glass sponge
Protospongia spina n. sp. Mehl et al. 1993 glass sponge | |