Portage Chute Formation, Member 1 (North Knife River Exposure): Edenian - Richmondian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Orthida
- Platyorthidae
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Diceromyonia sp.
Wang 1949
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Cephalopoda
- Actinocerida
- Actinoceratidae
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Kochoceras sp.
Troedsson 1926
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Cephalopoda
- Actinocerida
- Gonioceratidae
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Lambeoceras kronlundi
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Gastropoda
- Murchisoniina
- Trochonematidae
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Trochonema coxi
Wilson 1938
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Gastropoda
- Murchisoniina
- Subulitidae
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Fusispira gigantea
Wilson 1938
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Gastropoda
- Euomphalina
- Macluritidae
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Maclurites manitobensis
(Whiteaves 1890)
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| recombined as Maclurina manitobensis | ||||||||||
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Anthozoa
- Stauriida
- Stauriidae
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Favistella alveolata
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Palaeophyllum halysitoides
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Anthozoa
- Stauriida
- Streptelasmatidae
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Grewingkia robusta
Whiteaves 1896
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Anthozoa
- Lichenariida
- Lyoporidae
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? Nyctopora foerstei
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Nyctopora mackenziei n. sp.
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Anthozoa
- Heliolitida
- Plasmoporidae
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Plasmopora lambei
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Anthozoa
- Heliolitida
- Halysitidae
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Catenipora aequabilis
(Teichert 1937)
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Catenipora agglomeratiformis
(Hall 1900)
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Anthozoa
- Sarcinulida
- Syringophyllidae
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Calapoecia arctica
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| Calapoecia arctica Troedsson(?) | ||||||||||
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Chlorophyceae
- Receptaculitidae
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Receptaculites sp.
Defrance 1827
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Manitoba |
| Coordinates: | 58.5° North, 95.0° West (view map) | ||
| Paleocoordinates: | 7.4° South, 52.2° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
| *Period: | Late/Upper Ordovician | *Local age/stage: | Edenian - Richmondian |
| Key time interval: | Edenian - Richmondian | ||
| Age range of interval: | 451.10000 - 446.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Bad Cache Rapids | Formation: | Portage Chute | Member: | 1 |
| Stratigraphic resolution: | member |
Lithology and environment
| Primary lithology: | calcareous sandstone |
| Includes fossils? | Y |
| Lithology description: Sandstone, calcareous sandstone, and minor amounts of conglomerate. Fossiliferous in the western area of the outcrop | |
| Environment: | marine indet. |
| Geology comments: Environmental call by T. Hanson | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 13657 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2002-04-16 19:37:27 | Last modified: | 2003-09-01 20:46:29 |
| Access level: | the public | Released: | 2002-04-16 19:37:27 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6140. | S. J. Nelson. 1963. Ordovician paleontology of the Northern Hudson Bay lowland. Geological Society of America Memoir 90:1-152 [S. Holland/T. Hanson/T. Hanson] |