USNM 10799. Roberts Creek Mountain: Eifelian, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Murchisoniina - Loxonematidae
Loxonema walcotti Blodgett and Johnson 1992
1 specimen
Gastropoda - Murchisoniina - Gosseletinidae
? Mourlonia informal sp. B
2 specimens
    = Pleurorima sp. Perner 1907
Wagner 2023
Ptychomphalina informal n. sp. Fischer 1885
1 specimen
see common names

Geography
Country:United States State/province:Nevada County:Eureka
Coordinates: 39.6° North, 116.3° West (view map)
Paleocoordinates:22.0° South, 77.6° West (Wright 2013)
Basis of coordinate:based on political unit
Altitude:6900 feet
Geographic resolution:outcrop
Time
Period: Devonian Epoch: Middle Devonian
Stage: Eifelian 10 m.y. bin: Devonian 3
*Period:Middle Devonian *Epoch:Early/Lower Eifelian
Key time interval: Eifelian Conodont zone:  Polygnathus costatus costatus
Age range of interval: 393.3 - 387.7 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Nevada Formation:Denay Limestone
Local section:Roberts Mountain Local bed:15
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: Conodont zone: costatus. Johnson Faunal Interval
Lithology and environment
Primary lithology: lithified packstone
Environment:marine indet.
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some macrofossils,some microfossils
Collection methods:bulk,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collection method comments: Brachiopods described by Johnson (1970, 1971 J. Paleo papers)
Metadata
Also known as:LACMIP Loc. 24740; UCLA Loc. 4740; J58-4
Database number:3825
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:1999-08-10 16:43:56 Last modified:2018-08-23 15:01:04
Access level:the public Released:1999-08-10 16:43:56
Creative Commons license:CC BY
Reference information

Primary reference:

255. R. B. Blodgett and J. G. Johnson. 1992. Early Middle Devonian (Eifelian) Gastropods of Central Nevada. Palaeontographica Abteilung A 222:85-139 [P. Wagner/P. Wagner/P. Wagner]

Secondary references:

9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]