D 290 CO: Stairsian, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Orthida
- Plectorthidae
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Nanorthis hamburgensis
(Walcott 1884)
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| Nanorthis sp. | ||||||||||
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Agnostida
- Metagnostidae
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Geragnostus sp.
Howell 1935
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Trilobita
- Proetida
- Hystricuridae
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Hystricurus aff. genalatus
Ross 1951
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| Hystricurus sp. | ||||||||||
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? Hystricurus aff. politus
Ross 1951
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? Hillyardina sp.
Ross 1951
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Trilobita
- Corynexochida
- Leiostegiidae
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Leiostegium goodwinensis
Ross 1970
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Trilobita
- Asaphida
- Remopleurididae
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Apatokephalus ? finalis
(Walcott 1884)
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| Apatokephalus sp. (possibly finalis) | ||||||||||
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Eorobergia sp.
Cooper 1953
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Trilobita
- Asaphida
- Asaphidae
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? Niobella sp.
Reed 1931
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Protopresbynileus wildeni
(Hintze 1953)
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Asaphellus riojanus
Harrington and Leanza 1957
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Trilobita
- Ptychopariida
- Shumardiidae
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Shumardia sp.
Billings 1862
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Trilobita
- Phacopida
- Pliomeridae
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Rossaspis sp.
Harrington 1957
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Trilobita
- Olenida
- Olenidae
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Hypermecaspis kolouros
Ross 1970
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| Hypermecaspis sp. 2 sp. | ||||||||||
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Parabolinella sp.
Brögger 1882
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Parabolinella hecuba
(Walcott 1924)
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| Parabolinella sp. 2 sp. | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nevada |
| Coordinates: | 39.1° North, 116.3° West (view map) | ||
| Paleocoordinates: | 4.3° South, 85.3° West | ||
| Basis of coordinate: | based on political unit |
Time
| Period: | Ordovician | Epoch: | Early Ordovician |
| Stage: | Tremadocian | 10 m.y. bin: | Ordovician 1 |
| *Period: | Early/Lower Ordovician | ||
| Key time interval: | Stairsian | Trilobite zone: | Leiostegium-Kainella |
| Age range of interval: | 482 - 480.3 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Pogonip | Formation: | Goodwin | ||
| Regional section: | Composite Antelope Valley | Regional bed: | 155 ft | ||
| Regional order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Sepkoski: "L. Ord., Zone B"
However, this is almost certainly Zone D. | |||||
Lithology and environment
| Primary lithology: | "limestone" |
| Environment: | deep subtidal shelf |
| Geology comments: "ls and shaly ls. outer shelf, BA4-5? [BA4 circled]" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: "collections d290, d368c, d289, d368d, d291, d295, d368e" | |
| Taxonomic list comments:"R.J.Ross Jr. 1970. Ord. brachiopods, trilobites and strat. in eastern and central Nevada. USGS Prof Paper 639 p1-103." [brach and trilobites only] | |
Metadata
| Also known as: | Was: Antelope Range, Goodwin Limestone, Zone B(?), Nevada | ||
| Database number: | 278 | ||
| Authorizer: | J. Sepkoski, P. Wagner | Enterer: | M. Sommers, P. Wagner |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 1999-03-21 17:47:36 | Last modified: | 2024-02-27 15:50:04 |
| Access level: | the public | Released: | 1999-03-21 17:47:36 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 25411. | R. J., J.r. Ross. 1970. Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada. United States Geological Survey Professional Paper 639:1-99 [S. Finnegan/S. Finnegan/P. Wagner] |