Little Elk Creek 51 [Deadwood Fm]: Dresbachian, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Agnostida
- Diplagnostidae
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Pseudagnostina douvillei
(Bergeron 1899)
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7 individuals | ||||||
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Nahannagnostus nganasanicus
(Rozova 1964)
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1 individual | ||||||
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Agnostida
- Agnostidae
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Kormagnostus seclusus
(Walcott 1884)
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3 individuals | ||||||
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Agnostida
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Agnostogonus cf. incognitus
Opik 1967
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1 individual | ||||||
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Trilobita
- Llanoaspididae
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Llanoaspis undulata
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1 individual | ||||||
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Arcuolimbus convexus
Palmer 1954
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26 individuals | ||||||
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Trilobita
- Ptychopariida
- Catillicephalidae
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Pemphigaspis bullata
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1 individual | ||||||
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Trilobita
- Ptychopariida
- Tricrepicephalidae
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Tricrepicephalus coria
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2 individuals | ||||||
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Tricrepicephalus tripunctatus
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5 individuals | ||||||
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Meteoraspis metra
(Walcott 1890)
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4 individuals | ||||||
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Trilobita
- Ptychopariida
- Kingstoniidae
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Komaspidella lata
Rasetti 1961
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5 individuals | ||||||
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Kingstonia walcotti
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11 individuals | ||||||
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Blountia janei
Lochman and Duncan 1944
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2 individuals | ||||||
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= Blountia informal sp. indet.
Walcott 1916
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Armstrong et al. 2020 | ||||||
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Trilobita
- Ptychopariida
- Crepicephalidae
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Coosina ariston
(Walcott 1916)
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7 individuals | ||||||
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Crepicephalus auratus
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3 individuals | ||||||
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Crepicephalus buttsimontanaensis
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4 individuals | ||||||
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Uncaspis limbata
|
2 individuals | ||||||
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Coosia alethes
(Walcott 1916)
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19 individuals | ||||||
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Trilobita
- Ptychopariida
- Marjumiidae
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Coosella onusta
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2 individuals | ||||||
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Trilobita
- Ptychopariida
- Menomoniidae
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Dresbachia amata
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1 individual | ||||||
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Trilobita
- Olenida
- Asaphiscidae
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Blountiella alberta
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1 individual | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Little Elk Creek |
| Coordinates: | 44.3° North, 103.6° West (view map) | ||||
| Paleocoordinates: | 11.9° 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 - 485.4 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: | LEC 51 | ||
| Database number: | 7199 | ||
| Authorizer: | M. Patzkowsky, P. Wagner | Enterer: | K. Straub, P. Wagner |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2000-05-10 12:40:18 | Last modified: | 2009-06-12 01:50:08 |
| Access level: | the public | Released: | 2000-05-10 12:40:18 |
| 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] |
Secondary references:
| 88816 | M. Armstrong, S. R. Westrop, and J. D. Eof. 2020. Systematics of a survivor: the Cambrian kingstoniid trilobite Blountia Walcott, 1916 across the Marjuman-Steptoean (Guzhangian-Paibian) extinction interval in Laurentian North America. 4804(1):zootaxa.48 [P. Wagner/P. Wagner] |