Lake Simcoe Area, Submember C1A: Turinian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Florideophyceae
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Tetradium fibratum
Safford 1856
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| recombined as Prismostylus fibratum | |||||||
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unclassified
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Tetradium cellulosum
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Stromatoporoidea
- Labechiida
- Stromatoceriidae
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Stromatocerium rugosum
Hall 1847
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Anthozoa
- Sarcinulida
- Billingsariidae
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Foerstephyllum halli
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Anthozoa
- Lichenariida
- Lichenariidae
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Lichenaria sp.
Winchell and Schuchert 1895
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Lichenaria coboconkensis
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Anthozoa
- Stauriida
- Lambelasmatidae
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Lambeophyllum profundum
(Conrad 1843)
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Gastropoda
- Euomphalina
- Helicotomidae
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Helicotoma planulata
Salter 1859
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Gastropoda
- Murchisoniina
- Eotomariidae
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Liospira sp.
Ulrich and Scofield 1897
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Gastropoda
- Murchisoniina
- Hormotomidae
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Hormotoma gracilis
(Hall 1847)
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Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira sp.
Whitfield 1886
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Cephalopoda
- Actinocerida
- Actinoceratidae
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Actinoceras bigsbyi
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira recurvirostris
(Hall 1847)
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| recombined as Anazyga recurvirostra | |||||||
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Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
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Rhynchotrema increbescens
(Hall 1847)
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena incurvata
(Shephard 1838)
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Opikina clara
(Okulitch 1935)
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina trentonensis
(Hall 1847)
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Trilobita
- Proetida
- Bathyuridae
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Bathyurus sp.
Billings 1859
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Trilobita
- Phacopida
- Cheiruridae
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Ceraurus pleurexanthemus
Green 1832
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Ontario |
| Coordinates: | 44.7° North, 78.8° West (view map) | ||
| Paleocoordinates: | 24.9° South, 54.8° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Stage: | Sandbian | 10 m.y. bin: | Ordovician 4 |
| *Period: | Middle Ordovician | *Epoch: | Caradoc | *Local age/stage: | Blackriveran |
| Key time interval: | Turinian | Conodont zone: | Phragmodus undatus |
| Age range of interval: | 457.00000 - 453.70000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Simcoe | Formation: | Bobcaygeon | Member: | Coboconk |
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: Lower submember, lower faunal zone. This is now the Coboconk. | |||||
Lithology and environment
| Primary lithology: | gray "limestone" |
| Includes fossils? | Y |
| Lithology description: Gray and brownish gray fine- and medium-grained limestone, and some gray crystalline crinoidal limestone. | |
| Environment: | open shallow subtidal |
| Geology comments: Lithology indiciative of shallowing conditions on the shelf of a Middle Ordovician sea. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | chemical,field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 26175 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-10-07 13:42:29 | Last modified: | 2018-04-11 20:48:52 |
| Access level: | the public | Released: | 2002-10-07 13:42:29 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 7251. | B. A. Liberty. 1969. Palaeozoic geology of the Lake Simcoe Area, Ontario. Geological Survey of Canada Memoirs (355)1-201 [S. Holland/T. Hanson/T. Hanson] |