Locality 90R-BR, U. Antelope Valley Fm, Martin Ridge: Whiterockian, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Gastropoda
- Murchisoniina
- Eotomariidae
|
||||||||||
|
Gastropoda
- Euomphalina
- Lesueurillidae
|
||||||||||
| Rohr 1994 | ||||||||||
| Wagner 2023 | ||||||||||
|
Gastropoda
- Euomphalina
- Macluritidae
|
||||||||||
| operculum | ||||||||||
| Rohr 1994 | ||||||||||
| Rohr 1994 | ||||||||||
|
Gastropoda
- Euomphalina
- Ophiletidae
|
||||||||||
| Rohr 1994 | ||||||||||
| Rohr 1994 | ||||||||||
|
Paragastropoda
- Mimospirida
- Clisospiridae
|
||||||||||
| Wagner 2023 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nevada | County: | Eureka |
| Coordinates: | 39.2° North, 116.4° West (view map) | ||||
| Paleocoordinates: | 14.9° North, 122.8° West (Wright 2013) | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | ||
| 10 m.y. bin: | Ordovician 2-4 | ||
| *Period: | Middle Ordovician | *Epoch: | Early/Lower Llanvirn - Middle Llanvirn |
| *International age/stage: | Early/Lower Llanvirn - Middle Llanvirn | *Local age/stage: | Early/Lower Whiterockian - Middle Whiterockian |
| Key time interval: | Whiterockian | Zone: | Anomalorthis; Histiodella sinuosa - Histiodella holodentata |
| Age range of interval: | 470 - 457 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Pogonip | Formation: | Antelope Valley | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Anomalorthis Zone, Kanoshian, middle Whiterockian | |||||
Lithology and environment
| Primary lithology: | dolomitic,peloidal lime mudstone |
| Secondary lithology: | dolomitic,peloidal wackestone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Environment: | lagoonal/restricted shallow subtidal |
Taphonomy
| Modes of preservation: | replaced with silica |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 14241 | ||
| Authorizer: | A. Miller, P. Wagner | Enterer: | R. Krause, P. Wagner |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2002-05-28 13:18:03 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2002-05-28 13:18:03 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 6152. | D. M. Rohr. 1996. Ordovician (Whiterockian) gastropods of Nevada, Part 2. Journal of Paleontology 70(1):56-63 [A. Miller/R. Krause/P. Wagner] |
Secondary references:
| 10956 | J. Pojeta and B. Runnegar. 1976. The paleontology of rostroconch mollusks and the early history of the phylum Mollusca. United States Geological Survey Professional Paper 968:1-88 [P. Wagner/P. Wagner/P. Wagner] | |
| 11495 | D. M. Rohr. 1994. Ordovician (Whiterockian) gastropods of Nevada: Bellerophontoidea, Macluritoidea, Euomphaloidea. Journal of Paleontology 68(3):473-486 [P. Wagner/P. Wagner/P. Wagner] | |
| 9042 | P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner] |