Section 11A. O-104540. Jordan River: Chatfieldian - Edenian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Oncocerida
- Oncoceratidae
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Beloitoceras gouldi
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Cephalopoda
- Orthocerida
- Tripteroceratidae
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Rasmussenoceras leveannulatum
(Troedsson 1926)
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Cephalopoda
- Actinocerida
- Gonioceratidae
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Lambeoceras baffinense
Miller et al. 1954
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Gastropoda
- Euomphalina
- Macluritidae
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Maclurina sp.
Ulrich and Scofield 1897
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Trilobita
- Olenida
- Olenidae
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Triarthrus (Triarthrus) eatoni
(Hall 1838)
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Triarthrus (Danarcus) glaber
Billings 1859
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Trilobita
- Phacopida
- Calymenidae
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Flexicalymene croneisi
(Roy 1941)
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Trilobita
- Asaphida
- Asaphidae
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Pseudogygites arcticus
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Pseudogygites latimarginatus
(Hall 1847)
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Isotelus cf. iowaensis
(Owen 1852)
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| recombined as Isotelus iowensis | |||||||
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Demospongiae
- Chaetetida
- Cryptolichenariidae
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Amsassia floweri
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Chlorophyceae
- Receptaculitidae
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Fisherites fieldi
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Nunavut |
| Coordinates: | 63.7° North, 69.0° West (view map) | ||
| Paleocoordinates: | 10.9° South, 39.9° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Key time interval: | Chatfieldian - Edenian | Graptolite zone: | Climacograptus spiniferus |
| Age range of interval: | 453.70000 - 450.40000 m.y. ago |
Stratigraphy
| Formation: | Amadjuak | Member: | Unit 1 | ||
| Local section: | Section 11A | Local bed: | 11 - 15.5 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Belodina confluens zone (Zhang 2017) and Acanthochitina cancellata zone (Asselin, Achab & Soufiane 2000) | |||||
Lithology and environment
| Primary lithology: | dolomitic "limestone" |
| Secondary lithology: | calcareous "shale" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "Throughout the Mount, the top 50 feet of these beds consists of massive dolomite limestone, the next 75 feet of thin-bedded limestone and dolomite, and the lower 175 feet of calcareous shale with some interbedded limestone." | |
| Environment: | carbonate indet. |
| Geology comments: Environmental call by T. Hanson. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | variable |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | GSC |
Metadata
| Also known as: | Section 5A. | ||
| Database number: | 192339 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2018-03-23 20:11:16 | Last modified: | 2018-03-23 21:40:11 |
| Access level: | the public | Released: | 2018-03-23 20:11:16 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 65083. | T. E. Bolton. 2000. Ordovician megafauna, southern Baffin Island, Nunavat. Geological Survey of Canada Bulletin 557:39-158 [P. Wagner/P. Wagner] |