UCMP D-5617, High Bald Peaks, Medicine Range: Artinskian, Nevada
collected by T. Yancey, L. Plas, M. Kaasa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Dactyletes sp.
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Yancey and Stevens 1981 | 2 individuals | ||||||||
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Rhynchonellata
- Athyridida
- Athyrididae
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Composita sp.
Brown 1849
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Yancey and Stevens 1981 | 8 individuals | ||||||||
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Rhynchonellata
- Terebratulida
- Dielasmatidae
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Dielasma phosphoriensis
(Branson 1930)
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1 individual | |||||||||
| misspelling Dielasma phosphoriense | ||||||||||
| (1 measurement) | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Pontisiidae
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? Pontisia sp.
Cooper and Grant 1969
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5 individuals | |||||||||
| Assumed to be same as Wellerella sp. in Yancey & Stevens, 1981 (1 measurement) | ||||||||||
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Strophomenata
- Productida
- Productidae
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Squamaria ivesi
(Newberry 1861)
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10 individuals | |||||||||
| recombined as Peniculauris ivesi | ||||||||||
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Polychaeta
- Sabellida
- Serpulidae
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Spirorbis sp.
Daudin 1800
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Yancey and Stevens 1981 | 8 individuals | ||||||||
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Scaphopoda
- Dentaliida
- Prodentaliidae
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Prodentalium sp.
Young 1942
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Yancey and Stevens 1981 | 1 individual | ||||||||
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Bivalvia
- Ostreida
- Pinnidae
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Meekopinna sagitta
(Chronic 1952)
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Bivalvia
- Pectinida
- Pseudomonotidae
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Pseudomonotis sp.
von Beyrich 1862
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Yancey and Stevens 1981 | 7 individuals | ||||||||
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Bivalvia
- Pectinida
- Limipectinidae
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Acanthopecten sp.
Girty 1903
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Yancey and Stevens 1981 | 2 individuals | ||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nevada |
| Coordinates: | 40.2° North, 115.2° West (view map) | ||
| Paleocoordinates: | 12.9° North, 36.4° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Cisuralian |
| Stage: | Artinskian | 10 m.y. bin: | Permian 2 |
| *Period: | Early/Lower Permian | ||
| Key time interval: | Artinskian | ||
| Age range of interval: | 290.10000 - 283.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Pequop | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 200' (61 m) below top of Pequop Fm | |||||
Lithology and environment
| Primary lithology: | bioturbation,pebbly,shelly/skeletal lithified "limestone" |
| Secondary lithology: | lithified sandstone |
| Lithology description: The enclosing rocks are composed of fine-grained mudstone or siltstone to coarse sandstone, and from wackestone to packstone. Occurrences on the west side of the seaway tend to be in limestones and sandstones and occasionaly in coarse pebble-bearing sediment, whereas occurrences on the east side of the seaway tend to be in finer-grained sediments with large clasts consisting entirely of shell material. | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Collection size: | 71 individuals |
| Reason for describing collection: | taxonomic analysis |
| Collectors: | T. Yancey, L. Plas, M. Kaasa |
| Taxonomic list comments:Also included in the list are 20 ramose form bryozoans, 5 fenestellid form bryozoans, 1 ostracod, and one crinoid. | |
Metadata
| Database number: | 11962 | ||
| Authorizer: | T. Olszewski, M. Clapham | Enterer: | M. Gibson, M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2001-09-22 10:16:27 | Last modified: | 2013-08-30 15:55:11 |
| Access level: | the public | Released: | 2001-09-22 10:16:27 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 16473. | T. E. Yancey. 1978. Brachiopods and mollusca of the Lower Permian Arcturus Group, Nevada and Utah, Part 1: brachiopods, scaphopods, rostroconchs, and bivalves. Bulletins of American Paleontology 74(303):257-367 [P. Wagner/P. Wagner/M. Clapham] |
Secondary references:
| 3837 | T. E. Yancey and C.H. Stevens. 1981. Early Permian fossil communities in northeastern Nevada and northwestern Utah. In J.Gray, A.J. Boucot, and W.B.N. Berry (eds.), Communitites of the Past 243-269 [T. Olszewski/M. Gibson/S. Bruning] |