Mackenzie Mountains, Sunblood Range, Whittaker Fm Hesperorthis-Oepikina Fauna: Caradoc - Late/Upper Ordovician, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena sp.
Rafinesque and De Blainville 1824
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Strophomenata
- Strophomenida
- Furcitellidae
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Oepikina sp.
(Salmon 1942)
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| original and current combination Opikina | |||||||
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Rhynchonellata
- Orthida
- Glyptorthidae
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Glyptorthis sp.
Foerste 1914
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Rhynchonellata
- Orthida
- Hesperorthidae
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Hesperorthis sp.
Schuchert and Cooper 1931
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira sp.
Hall 1862
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Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
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Rhynchotrema sp.
Hall 1860
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Rostricellula sp.
Ulrich and Cooper 1942
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Northwest Territories | County: | District of Mackenzie |
| Coordinates: | 61.7° North, 125.9° West (view map) | ||||
| Paleocoordinates: | 7.3° North, 57.3° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| *Period: | Middle Ordovician - Late/Upper Ordovician | *Epoch: | Caradocian | *Local age/stage: | Kirklandian |
| Key time interval: | Caradoc - Late/Upper Ordovician | ||
| Age range of interval: | 458.40000 - 443.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Whittaker |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | gray cherty/siliceous dolomite |
| Includes fossils? | Y |
| Lithology description: Moderately resistant, well-bedded, medium gray, commonly cherty dolostones. | |
| Environment: | deep subtidal indet. |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils,species names |
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Collection also includes gastropods, bivalve mollusks, ramose ectoprocts, receptaculitids, crinoid plates, and streptelasmatid corals. | |
Metadata
| Database number: | 25323 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | T. Hanson | Research group: | marine invertebrate |
| Created: | 2002-09-08 17:37:33 | Last modified: | 2024-03-31 19:20:47 |
| Access level: | the public | Released: | 2002-09-08 17:37:33 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 7070. | R. Ludvigsen. 1975. Ordovician formations and faunas, southern Mackenzie Mountains. Canadian Journal of Earth Sciences 12:663-697 [S. Holland/T. Hanson/J. Ju] |