Western Prince of Wales Island, Section 4, Unit 5, GSC loc. C26830: Lochkovian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Orthida
- Schizophoriidae
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Schizophoria fossula n. sp.
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Rhynchonellata
- Rhynchonellida
- Hebetoechiidae
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Hebetoechia ornatrix
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Strophomenata
- Strophomenida
- Amphistrophiidae
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Mesodouvillina musculusvarius n. sp.
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Conodonta
- Ozarkodinida
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Ozarkodina remscheidensis
Ziegler 1960
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| recombined as Nicollidina remscheidensis | |||||||
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Ozarkodina informal n. sp. 4
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Nunavut |
| Coordinates: | 73.5° North, 100.0° West (view map) | ||
| Paleocoordinates: | 2.2° South, 30.2° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Devonian | Epoch: | Early/Lower Devonian |
| Stage: | Lochkovian | 10 m.y. bin: | Devonian 1 |
| *International age/stage: | Early/Lower Lochkovian | ||
| Key time interval: | Lochkovian | ||
| Age range of interval: | 419.20000 - 410.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Unnamed formation. | |||||
Lithology and environment
| Primary lithology: | wackestone | ||
| Secondary lithology: | packstone | ||
| Lithology description: For this section in general: "thin-bedded, argillaceous lime-mudstone with common to abundant brachiopods [etc.]" For this unit: "Wackestone-packestone...abundant [fossils]" | |||
| Environment: | deep subtidal shelf | Tectonic setting: | passive margin |
| Geology comments: Deposits in this region are of two general kinds: shallow-water stable carbonate platform (generally in the NW part of Arctic Archipelago) and deeper basinal facies (generally to the SE). This collection is in the former.
"This community may have flourished slightly seaward of the position occupied by the bioherm. However, it represents a relatively quieter water environment, free from effects of waves and tides as evidenced by the large number of articulated valves as well as common to abundant argillaceous material." Smith places Hebetoechia Comm. in the fourth of six zones from near- to offshore. SEP environmental call based on given info and regional context; I suspect this could also be protected shallow subtidal | |||
Taphonomy
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | GSC |
| Collection method comments: Smith gives specimen counts. | |
| Taxonomic list comments:Focus of the entire monograph is on brachiopods. Other taxa mentioned but not necessarily listed in detail. | |
Metadata
| Also known as: | Hebetoechia Community | ||
| Database number: | 26434 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-10-15 13:42:39 | Last modified: | 2006-09-15 15:13:14 |
| Access level: | the public | Released: | 2002-10-15 13:42:39 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 7273. | R. E. Smith. 1980. Lower Devonian (Lochkovian) biostratigraphy and brachiopod faunas, Canadian arctic islands. Geological Survey of Canada Bulletin 308:1-155 [M. Foote/M. Foote/P. Wagner] |