USGS 17173-PC, Diamond Peak Fm, Nevada: Meramecian, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Rugosa
Rugosa indet. Milne-Edwards and Haime 1850
"Horn coral, gen and sp. indet"
Strophomenata - Strophomenida - Rugosochonetidae
Neochonetes informal sp. A Muir-Wood 1962
Strophomenata - Productida - Productidae
Auloprotonia sp.
"Auloprotonia n. sp."
Inflatia informal sp. A
Flexaria aff. arkansana
Strophomenata - Productida - Monticuliferidae
Striatifera sp. Chao 1927
"Striatifera n. sp."
Rhynchonellata - Spiriferida - Spiriferidae
Anthracospirifer aff. pellaensis
Rhynchonellata - Spiriferinida - Syringothyrididae
Pseudosyrinx desiderata
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Moorefieldella eurekensis
This taxon's occurrence is questionable, as indicated by "?" in the occurence check box in faunal list
Rhynchonellata - Terebratulida - Beecheriidae
Beecheria sp. Hall and Clarke 1893
This taxon's occurrence is questionable, as indicated by "?" in the occurence check box in faunal list
Rhynchonellata - Orthida - Schizophoriidae
Schizophoria sp. King 1850
Stenolaemata - Cystoporida - Cystodictyonidae
Cystodictya sp. Ulrich 1882
Stenolaemata - Cryptostomata - Fenestellidae
Fenestella sp. Lonsdale 1839
Stenolaemata - Cryptostomata - Acanthocladiidae
? Polypora sp.
Stenolaemata - Cyclostomata
Cyclostomata indet. Busk 1852
"Fistuliporoid, gen. and sp. indet."
Stenolaemata - Trepostomata
Trepostomata informal encrusting form indet.
"Stenoporoid, encrusting form, indet."
Bivalvia - Pectinida - Aviculopectinidae
Aviculopecten sp. M'Coy 1851
Chondrichthyes - Ctenacanthiformes - Ctenacanthidae
Cladodus sp. Agassiz 1843
Crinoidea
Crinoidea indet. Miller 1821
"crinoid columnals"
see common names

Geography
Country:United States State/province:Nevada County:White Pine
Coordinates: 39.6° North, 115.8° West (view map)
Paleocoordinates:1.1° South, 49.5° West
Basis of coordinate:estimated from map
Altitude:9750 feet
Geographic resolution:small collection
Time
Period:Carboniferous Epoch:Middle Mississippian
Stage:Visean 10 m.y. bin:Carboniferous 2
Key time interval:Meramecian
Age range of interval:345.00000 - 336.00000 m.y. ago
Stratigraphy
Formation:Diamond Peak Member:D
Stratigraphic resolution:group of beds
Stratigraphy comments: "Diamond Peak Formation, limestone and calcareous shale, 50 ft thick, above fourth massive conglomerate on ridge, perhaps 1,000 ft above base fo formation."
Lithology and environment
Primary lithology: lithified "limestone"
Secondary lithology: lithified calcareous "shale"
Lithology description: "limestone and calcareous shale, 50 ft thick" "Member D is a resistant cliff- and ledge-forming sequence of thick and very thick bedded limestones interstratified with sandstone and minor amounts of clay shale, conglomerate, and siltstone. The limestone is typically gray or blue gray, weathers brownish gray in some place, and is locally very hard and dense. A few of the limestone beds have sets of planar cross-strata, and others are noticeably pyritic. Almost all are fossiliferous, containing crinoid columnals, colonial and solitary corals, bryozoans, brachiopods, and, locally, formainifers. Many of the limestone strata have 'stringers' and thin beds of dark chert granules and pebbles; others contain abundant silt-size quartz and chert grains and grade into limy siltstone. The nonlimy siltstone present is olive gray, thin bedded and occurs also as the matrix of the limestone-phenoplast conglomerate of theis member. The clay shale interclated with the limestone is gray and fissile, weathers olive gray, and is locally either pyritic or limy. Small brachiopod casts occur in some of the beds. Light-gray, brown, and light-brown, fairly well sorted, fine-grained sandstone in beds 7.5-75 cm thick occurs between the limestone beds. Most of the sandstone is hard, dense and moderately well sorted. Some is pyritic and some is conglomeratic. The conglomerates in the sequence are gray or brownish white and weather to brownish gray and darker brown. Chert and quartzite form the rounded pebbles and cobbles, which are a maximum of 10 cm in diameter. The chert fragments tend to be more angular and are red, white, gray, and black. Some of the conglomerates grade to sandstone; others contain relatively little sandstone matrix and are cemented with calcite."
Environment:shallow subtidal indet.
Taphonomy
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Museum repositories:USGS
Collection method comments: Collected by Mackenzie Gordon, Jr., and D. A. Brew July 15, 1957.
Taxonomic list comments:Brew and Gordon list new species (without naming them) in their taxonomic lists but do not provide any formal taxonomic descriptions. Because of this, new species were indicated in the comment field but not in the species resolution field.
Metadata
Database number:62842
Authorizer:N. Heim Enterer:N. Heim
Research group:marine invertebrate
Created:2006-07-28 08:07:37 Last modified:2006-07-28 11:07:37
Access level:the public Released:2006-07-28 08:07:36
Creative Commons license:CC BY
Reference information

Primary reference:

18083. D. A. Brew and M. Gordon. 1971. Mississippian stratigraphy of the Diamond Peak Area, Eureka County, Nevada. United States Geological Survey Professional Paper 661:1-84 [N. Heim/N. Heim]