USGS f21924, Diamond Peak Fm, Nevada: Meramecian, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Eoendothyrandopsis sp.
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Ammodiscidae
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Glomospira sp.
Rzehak 1895
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This taxon's occurrence is questionable, as indicated by "?" in the occurence check box in faunal list | ||||||||||
Tubothalamea
- Miliolida
- Cornuspiridae
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Cornuspira sp.
Schultze 1854
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Palaeotextulariidae
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Climacammina ex gr. prisca
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Climacammina ex gr. patula
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Palaeotextularia ex gr. consobrina
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Endothyridae
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Globoendothyra sp.
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Endothyra pandorae
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Endothyra phrissa
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Endothyra ex gr. prisca
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Endothyranopsis crassus
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Endothyranopsis compressus
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Eostaffellidae
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Eostaffella (Paramillerella) tortula
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Archaediscidae
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Neoarchaediscus sp.
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Archaediscus krestovnikovi
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Pseudoammodiscidae
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Brunsia spp.
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Tuberitinidae
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Tuberitina sp.
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Earlandiidae
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Earlandia spp.
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Tetrataxidae
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Tetrataxis sp.
Ehrenberg 1854
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see common names |
Geography
Country: | United States | State/province: | Nevada | County: | White Pine |
Coordinates: | 39.5° North, 115.6° West (view map) | ||||
Paleocoordinates: | 1.2° South, 49.4° West | ||||
Basis of coordinate: | estimated from map | ||||
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: | bed | ||||
Stratigraphy comments: "Diamond Peak Formation, member D; 2,053 ft above base of formation and 1,473 ft below base of Ely Limestone." Within unit 44 of the Type Section of the Diamond Peak Formation. |
Lithology and environment
Primary lithology: | gray lithified "limestone" |
Secondary lithology: | lithified conglomeratic sandstone |
Lithology description: Unit 44: "Limestone (ES-59-60: foraminiferal biomicrite, = USGS loc. f21924), dark gray (weathering medium-gray), fossiliferous; interbedded minor conglomeratic sandstone, weathering brown, dense." "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: | deep subtidal ramp |
Taphonomy
Collection methods and comments
Reason for describing collection: | biostratigraphic analysis |
Museum repositories: | USGS |
Collection method comments: Collected by D. A. Brew 1959. | |
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: | 62846 | ||
Authorizer: | N. Heim | Enterer: | N. Heim |
Modifier: | N. Heim | Research group: | marine invertebrate,micropaleontology |
Created: | 2006-07-28 09:37:16 | Last modified: | 2006-07-28 12:56:26 |
Access level: | the public | Released: | 2006-07-28 09:37:16 |
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] |