USNM 10712. North end of double-topped ridge, Ribbit Hill: Siegen, Nevada
collected by J. G. Johnson and J. B. Roen; A. J. Boucot 1959, 1963

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Spiriferida - Delthyrididae
Howellella cycloptera (Hall 1857)
99 specimens
Rhynchonellata - Spiriferida - Ambocoeliidae
Spinoplasia roeni Johnson 1970
118 specimens
Rhynchonellata - Athyridida - Anoplothecidae
Coelospira concava (Hall 1857)
20 specimens
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira informal sp. B Hall 1859
1 specimen
Rhynchonellata - Athyridida - Meristellidae
Meristella cf. robertsensis Merriam 1940
68 specimens
Rhynchonellata - Atrypida - Atrypidae
Atrypa sp. Dalman 1828
1 specimen
Rhynchonellata - Orthida - Dalmanellidae
Levenea navicula Johnson 1970
39 specimens
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina informal sp. B Havlicek 1953
5 specimens
Rhynchonellata - Pentamerida - Camerellidae
Camerella sp. Billings 1859
1 specimen
Rhynchonellata - Rhynchonellida - Leptocoeliidae
Leptocoelina squamosa Johnson 1970
324 specimens
Strophomenata - Strophomenida - Strophodontidae
Stropheodonta magnacosta Johnson 1970
1 specimen
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena cf. acuticuspidata Amsden 1958
2 specimens
Strophomenata - Orthotetida - Schuchertellidae
Schuchertella informal sp. B Girty 1904
2 specimens
see common names

Geography
Country:United States State/province:Nevada County:Eureka
Coordinates: 39.2° North, 116.4° West (view map)
Paleocoordinates:19.9° South, 61.0° West
Basis of coordinate:based on nearby landmark
Altitude:7560 feet
Geographic resolution:outcrop
Time
Period:Devonian Epoch:Early/Lower Devonian
Stage:Pragian 10 m.y. bin:Devonian 1
Key time interval:Siegen Brachiopod zone: Spinoplasia
Age range of interval:410.80000 - 407.60000 m.y. ago
Stratigraphy
Formation:Rabbit Hill Limestone
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: "limestone"
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:J. G. Johnson and J. B. Roen; A. J. Boucot Collection dates:1959, 1963
Metadata
Also known as:4351, J60-1
Database number:164823
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2014-12-17 20:25:30 Last modified:2014-12-17 20:47:45
Access level:the public Released:2014-12-17 20:25:30
Creative Commons license:CC BY
Reference information

Primary reference:

46256. J. G. Johnson. 1970. Great Basin Lower Devonian Brachiopoda. Geological Society of America Special Paper (131)1-421 [P. Wagner/P. Wagner]