USNM 10802. 9100 feet ESE of Western Peak, Roberts Mountains (Devonian of the United States)

Also known as A90-2

Where: Eureka County, Nevada (39.6° N, 116.3° W: paleocoordinates 24.6° S, 54.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Polygnathus costatus conodont zone, Denay Limestone Formation (Nevada Group), Eifelian (393.3 - 387.7 Ma)

• Conodont zone: costatus. Faunal Interval 15.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; packstone

Size classes: macrofossils, microfossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: bulk,

• Brachiopods described by Johnson (1970, 1971 J. Paleo papers)

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3826: authorized by Pete Wagner, entered by Pete Wagner on 10.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Generic taxonomy updated by me.
Show authors, comments, and common names
Rhynchonellata
 Athyridida - Nucleospiridae
Nucleospira sp.1
Nucleospira sp.1 Hall 1859
 Athyridida - Athyrididae
Leptathyris circula1
 Orthida - Schizophoriidae
Schizophoria sp.1
Schizophoria sp.1 King 1850
 Orthida - Draboviidae
Vallomyonia devonica1
Vallomyonia devonica1 Walcott 1884
 Orthida - Dicoelosiidae
Teichertina americana n. sp.1
Teichertina americana n. sp.1 Johnson 1970
 Pentamerida - Clorindidae
Pentamerella wintereri1
Pentamerella wintereri1 Johnson 1966
 Pentamerida - Gypidulidae
Gypidula sp.1
Gypidula sp.1 Hall 1867
 Atrypida - Atrypidae
Anatrypa (Variatrypa) licta n. sp.1, Spinatrypina recula n. sp.1, Spinatrypa (Invertrypa) talis n. sp.1
Anatrypa (Variatrypa) licta n. sp.1 Johnson 1970
Spinatrypina recula n. sp.1 Johnson 1970
Spinatrypa (Invertrypa) talis n. sp.1 Johnson 1970
 Rhynchonellida - Leiorhynchidae
? Leiorhynchus sp.1
? Leiorhynchus sp.1 Hall 1860
 Rhynchonellida - Hebetoechiidae
Cassidirostrum sp.1
 Spiriferida - Ambocoeliidae
Echinocoelia denayensis1
 Spiriferida - Reticulariidae
Warrenella kirki1
Warrenella kirki1 Merriam 1940
 Spiriferida - Xenomartiniidae
Quadrithyris cf. vijaicus1
Quadrithyris cf. vijaicus1 Khodalevich 1951
Strophomenata
 Strophomenida - Eopholidostrophiidae
? Mesopholidostrophia sp.1
 Orthotetida - Schuchertellidae
"Schuchertella" sp.1
"Schuchertella" sp.1 Girty 1904
 Productida - Araksalosiidae
? Devonalosia sp.1
? Devonalosia sp.1 Muir-Wood and Cooper 1960
Gastropoda
 Euomphalina -
"Gyronema minutinodosa" = Kitikamispira minuitinodosa
"Gyronema minutinodosa" = Kitikamispira minuitinodosa Blodgett and Johnson 1992 snail
 Euomphalina - Pseudophoridae
Petrochus "sp. A"2, Decorospira rigbyi n. gen. n. sp.
Petrochus "sp. A"2 Horný 1992 snail
Decorospira rigbyi n. gen. n. sp. Blodgett and Johnson 1992 snail
type locality
 Euomphalina -
"Straparollus (Straparollus) cf. annulatus" = Serpulospira annulatus
"Straparollus (Straparollus) cf. annulatus" = Serpulospira annulatus Phillips 1841 snail
 Euomphalina - Euomphalidae
Straparollus (Straparollus) "sp. B"
 Neritoidea - Naticopsidae
Naticopsis (Naticopsis) spp.
 Caenogastropoda - Goniasmatidae
Stegocoelia (Stegocoelia) sp.
 Murchisoniina - Porcelliidae
"Porcellia (Paraporcellia) rohri" = Paraporcellia rohri, Quadricarina "sp. A", Quadricarina "n. sp. A."
"Porcellia (Paraporcellia) rohri" = Paraporcellia rohri Blodgett and Johnson 1992 snail
Quadricarina "sp. A" Blodgett and Johnson 1992 snail
Quadricarina "n. sp. A." Blodgett and Johnson 1992 snail
 Murchisoniina - Gosseletinidae
? Mourlonia "n. sp. A", "Ptychomphalina aurora" = Conotoma aurora
? Mourlonia "n. sp. A" de Koninck 1883 snail
"Ptychomphalina aurora" = Conotoma aurora Blodgett and Johnson 1992 snail
 Murchisoniina - Eotomariidae
Denayella housei
Denayella housei Blodgett and Johnson 1992 snail
 Bellerophontida - Tropidodiscidae
Tropidodiscus sp.
Tropidodiscus sp. Meek and Worthen 1866 snail
 Bellerophontida - Pterothecidae
"Merriamella eurekae" = Merriamites eurekae
"Merriamella eurekae" = Merriamites eurekae Blodgett and Johnson 1992 snail
 Bellerophontida - Bellerophontidae
"Bellerophon (Bellerophon) nevadensis" = Bellerophon nevadensis
"Bellerophon (Bellerophon) nevadensis" = Bellerophon nevadensis Blodgett and Johnson 1992 snail
1Johnson 1970; 2Wagner 2023