Mackenzie Mountains, Glacier Lake East, Esbataottine Fm Doleroides Fauna: Blackriveran - Caradoc, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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informal Isotelids sp.
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Brachiopoda indet.
Cuvier 1805
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena cf. 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
- Plectorthidae
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Doleroides sp.
Cooper 1930
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Trilobita
- Proetida
- Bathyuridae
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Bathyurus sp.
Billings 1859
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Bathyurus cf. extans
(Hall 1847)
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| Bathyurus cf. extans and Bathyurus extans | ||||||||||
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Trilobita
- Phacopida
- Cheiruridae
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Ceraurus sp.
Green 1832
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Trilobita
- Phacopida
- Pterygometopidae
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Calyptaulax sp.
Cooper 1930
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Ostracoda
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Ostracoda indet.
Latreille 1802
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Northwest Territories | County: | District of Mackenzie |
| Coordinates: | 62.2° North, 127.4° West (view map) | ||||
| Paleocoordinates: | 7.8° North, 57.7° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| *Period: | Middle Ordovician | *Epoch: | Llandeilo - Caradoc | *Local age/stage: | Blackriveran |
| Key time interval: | Blackriveran - Caradoc | ||
| Age range of interval: | 458.40000 - 449.60000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Esbataottine |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | gray argillaceous,silty "limestone" |
| Includes fossils? | Y |
| Lithology description: "[M]edium to dark grey, microcrystalline to finely crystalline, thin to medium bedded, commonly argillaceous and silty limestones that weathers banded grey and buff." | |
| Environment: | carbonate indet. |
| Geology comments: Environmental call by T. Hanson. | |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all microfossils,species names |
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 25303 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2002-09-07 20:18:24 | Last modified: | 2003-07-08 09:54:51 |
| Access level: | the public | Released: | 2002-09-07 20:18:24 |
| 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] |