Cataract Canyon [Spence Shale Mbr, Langtson Fm]: Middle Cambrian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Leanchoila superlata
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Waptiida
- Waptiidae
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Waptia cf. fieldensis
Walcott 1912
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see common names |
Geography
Country: | United States | State/province: | Utah | County: | Box Elder |
Coordinates: | 41.6° North, 112.0° West (view map) | ||||
Paleocoordinates: | 5.5° South, 89.6° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Cambrian | Epoch: | Miaolingian |
10 m.y. bin: | Cambrian 3-4 | ||
Key time interval: | Middle Cambrian | ||
Age range of interval: | 509.00000 - 497.00000 m.y. ago |
Stratigraphy
Formation: | Langston | Member: | Spence Shale | ||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Spence Shale of the Langston Fm. Stratigraphic relations are not discussed in text. AGE: Middle Cambrian. Justification not stated in text. STRATIGRAPHIC POSITION: Unknown position within member. |
Lithology and environment
Primary lithology: | lithified mudstone |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Found in the lower fine-grained parts of multiple meter-scale mudstone to nodular wackestone-packstone packages. LITHIFICATION: Lithified, on the basis of figured specimens. | |
Environment: | deep subtidal ramp |
Geology comments: ENVIRONMENT: Alternating periods of low and moderate energy depositional environment on carbonate ramp. |
Taphonomy
Modes of preservation: | body,cast,mold/impression,soft parts |
Lagerst�tten type: | conservation |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | medium |
Articulated whole bodies: | some |
Collection methods and comments
Collection excludes: | difficult macrofossils |
Collection methods: | surface (in situ),field collection,survey of museum collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | ROM,USNM,YPM |
Collection method comments: COLLECTORS: Unknown, but possibly including B.S. Liverman, D.E. Briggs, S.L. Halgedahl, and R.J Jarrard. REPOSITORIES: KUMIP (Kansas), ROM (Ontario), USNM (Washington), UU (Utah), YPM (Yale). | |
Taxonomic list comments:COVERAGE: Only includes those taxa systematically discussed in publication. NOMENCLATURE: Authoritative publication with modern nomenclature and use of species-resolution assignments. |
Metadata
Database number: | 80121 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2008-04-05 10:01:23 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2008-04-05 10:01:23 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
26947. | D. E. G. Briggs, B. S. Lieberman, J. R. Hendricks, S. L. Halgedahl, and R. D. Jarrard. 2008. Middle Cambrian arthropods from Utah. Journal of Paleontology 82(2):238-254 [A. Hendy/A. Hendy] |