USNM 10802. 9100 feet ESE of Western Peak, Roberts Mountains: Eifelian, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Murchisoniina - Gosseletinidae
? Mourlonia informal n. sp. A
1 specimen
Ptychomphalina aurora Blodgett and Johnson 1992
7 specimens
Gastropoda - Murchisoniina - Porcelliidae
Porcellia (Paraporcellia) rohri Blodgett and Johnson 1992
1 specimen
Quadricarina informal sp. A
4 specimens
Quadricarina informal n. sp. A. Blodgett and Johnson 1992
4 specimens
Gastropoda - Murchisoniina - Eotomariidae
Denayella housei Blodgett and Johnson 1992
1 specimen
Gastropoda - Naticopsidae
Naticopsis (Naticopsis) spp. M'Coy 1844
1 specimen
Gastropoda - Bellerophontida - Pterothecidae
Merriamella eurekae Blodgett and Johnson 1992
36 specimens
Gastropoda - Bellerophontida - Bellerophontidae
Bellerophon (Bellerophon) nevadensis Blodgett and Johnson 1992
4 specimens
Gastropoda - Bellerophontida - Tropidodiscidae
Tropidodiscus sp. Meek and Worthen 1866
1 specimen
Gastropoda - Goniasmatidae
Stegocoelia (Stegocoelia) sp. Donald 1889
1 specimen
Gastropoda - Euomphalina - Euomphalidae
Straparollus (Straparollus) informal sp. B
1 specimen
Gastropoda - Euomphalina
Straparollus (Straparollus) cf. annulatus (Phillips 1841)
1 specimen
Gyronema minutinodosa Blodgett and Johnson 1992
4 specimens
Gastropoda - Euomphalina - Pseudophoridae
Decorospira rigbyi n. gen., n. sp. Blodgett and Johnson 1992
1 specimen
type locality
Anematina informal sp. A
1 specimen
    = Petrochus informal sp. A Horný 1992
Wagner 2023
Rhynchonellata - Spiriferida - Reticulariidae
Warrenella kirki (Merriam 1940)
Johnson 1970 4 specimens
Rhynchonellata - Spiriferida - Xenomartiniidae
Quadrithyris cf. vijaicus (Khodalevich 1951)
Johnson 1970 6 specimens
Rhynchonellata - Spiriferida - Ambocoeliidae
Echinocoelia denayensis Johnson 1966
Johnson 1970 39 specimens
Rhynchonellata - Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
Johnson 1970 13 specimens
Rhynchonellata - Pentamerida - Clorindidae
Pentamerella wintereri Johnson 1966
Johnson 1970 350 specimens
Rhynchonellata - Atrypida - Atrypidae
Spinatrypina recula n. sp. Johnson 1970
Johnson 1970 16 specimens
Spinatrypa (Invertrypa) talis n. sp. Johnson 1970
Johnson 1970 102 specimens
Anatrypa (Variatrypa) licta n. sp. Johnson 1970
Johnson 1970 191 specimens
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
Johnson 1970 5 specimens
Rhynchonellata - Athyridida - Athyrididae
Leptathyris circula
Johnson 1970 10 specimens
Rhynchonellata - Rhynchonellida - Leiorhynchidae
? Leiorhynchus sp. Hall 1860
Johnson 1970 4 specimens
Rhynchonellata - Rhynchonellida - Hebetoechiidae
Cassidirostrum sp.
Johnson 1970 3 specimens
Rhynchonellata - Orthida - Dicoelosiidae
Teichertina americana n. sp. Johnson 1970
Johnson 1970 17 specimens
Rhynchonellata - Orthida - Draboviidae
Vallomyonia devonica (Walcott 1884)
Johnson 1970 17 specimens
Rhynchonellata - Orthida - Schizophoriidae
Schizophoria sp. King 1850
Johnson 1970 53 specimens
Strophomenata - Strophomenida - Eopholidostrophiidae
? Mesopholidostrophia sp. Williams 1950
Johnson 1970 3 specimens
Strophomenata - Productida - Araksalosiidae
? Devonalosia sp. Muir-Wood and Cooper 1960
Johnson 1970 1 specimen
Strophomenata - Orthotetida - Schuchertellidae
"Schuchertella" sp. Girty 1904
Johnson 1970 6 specimens
see common names

Geography
Country:United States State/province:Nevada County:Eureka
Coordinates: 39.6° North, 116.3° West (view map)
Paleocoordinates:24.6° South, 54.8° West
Basis of coordinate:based on nearby landmark
Altitude:7840 feet
Geographic resolution:outcrop
Time
Period: Devonian Epoch: Middle Devonian
Stage: Eifelian 10 m.y. bin: Devonian 3
*Period:Middle Devonian *Epoch:Early/Lower Middle Devonian
*International age/stage:Early/Lower Eifelian - Early/Lower Eifelian
Key time interval: Eifelian Conodont zone:  Polygnathus 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. Faunal Interval 15.
Lithology and environment
Primary lithology: packstone
Environment:marine indet.
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils,microfossils
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)
Taxonomic list comments:Generic taxonomy updated by me.
Metadata
Also known as:A90-2
Database number:3826
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:1999-08-10 16:47:55 Last modified:2014-12-09 18:51:10
Access level:the public Released:1999-08-10 16:47:55
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:

53803 J. G. Johnson. 1970. Middle Devonian Brachiopods from Central Nevada. Journal of Paleontology 44(2):252-264 [P. Wagner/P. Wagner]
9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]