High School Sample x34 [Deadwood Fm]: Dresbachian, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Agnostida
- Agnostidae
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Kormagnostus seclusus
(Walcott 1884)
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1 individual | ||||||
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Hadragnostus modestus
(Lochman 1944)
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2 individuals | ||||||
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Agnostida
- Diplagnostidae
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Nahannagnostus nganasanious
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5 individuals | ||||||
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Pseudagnostina douvillei
(Bergeron 1899)
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2 individuals | ||||||
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Agnostida
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Agnostogonus cf. incognitus
Opik 1967
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16 individuals | ||||||
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Trilobita
- Ptychopariida
- Kingstoniidae
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Kingstonia walcotti
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3 individuals | ||||||
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Blountia eleanora
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1 individual | ||||||
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Trilobita
- Ptychopariida
- Crepicephalidae
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Uncaspis unca
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1 individual | ||||||
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Crepicephalus auratus
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8 individuals | ||||||
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Crepicephalus buttsimontanaensis
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1 individual | ||||||
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Coosia alethes
(Walcott 1916)
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26 individuals | ||||||
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Trilobita
- Ptychopariida
- Tricrepicephalidae
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Tricrepicephalus conia
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1 individual | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Whitewood Creek in Lead |
| Coordinates: | 44.3° North, 103.8° West (view map) | ||||
| Paleocoordinates: | 11.8° South, 82.3° West | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| *Period: | Late/Upper Cambrian | *Epoch: | Merioneth | *Local age/stage: | Marjuman |
| Key time interval: | Dresbachian | Trilobite zone: | Crepicephalus |
| Age range of interval: | 497.00000 - 485.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | "limestone" |
| Secondary lithology: | sandstone |
| Environment: | shoreface |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | HS x34 | ||
| Database number: | 7184 | ||
| Authorizer: | M. Patzkowsky | Enterer: | K. Straub |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2000-05-10 08:37:18 | Last modified: | 2009-06-12 01:38:28 |
| Access level: | the public | Released: | 2000-05-10 08:37:18 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 450. | J. H. Stitt and P. J. Perfetta. 2000. Trilobites, Biostratigraphy, and Lithostratigraphy of the Crepicephalus and Aphelaspis zones, Lower Deadwood formation (Marjuman and Steptoean Stages, Upper Cambrian), Black Hills, South Dakota. Journal of Paleontology 74(2):199-223 [M. Patzkowsky/K. Straub/P. Wagner] |