CAT-3. Cape Breton Island: Tommotian - Atdabanian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Hyolithelminthida
- Hyolithellidae
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Hyolithellus tenuis
Rozanov and Missarzhevsky 1966
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33 individuals | |||||||||
| a+c types, 30 irregularly annulated conch and 3 evenly annulated conch | ||||||||||
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Hyolithelminthida
- Torellellidae
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Torellella laevigata
(Linnarsson 1871)
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25 elements | |||||||||
| a+c types | ||||||||||
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Coeloscleritophora
- Chancelloriida
- Chancelloriidae
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Chancelloria sp.
Walcott 1920
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54 elements | |||||||||
| a+c types, 2 4-rayed sclerite and 52 6-rayed sclerite | ||||||||||
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Cambroclavida
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Samsonoffoclavus matthewi n. gen., n. sp.
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36 individuals | |||||||||
| a+c types | ||||||||||
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unclassified
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Coleoloides typicalis
Walcott 1890
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76 elements | |||||||||
| a+c types, also Coleoloides typicalis tubes present | ||||||||||
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Conodonta
- Paraconodontida
- Furnishinidae
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Hertzina elongata
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2 elements | |||||||||
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unclassified
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Spirellus sp.
Jiang 1982
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1 individual | |||||||||
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Orthothecida
- Allathecidae
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Allatheca degeeri
(Holm 1893)
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55 individuals | |||||||||
| a+c type | ||||||||||
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Orthothecida
- Gracilithecidae
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Gracilitheca bayonet
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33 individuals | |||||||||
| a+c type | ||||||||||
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Hyolithida
- Hyolithidae
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Hyolithes tenuistriatus
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1 individual | |||||||||
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Orthothecimorpha
- Circothecida
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Ladatheca cylindrica
(Grabau 1900)
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3 individuals | |||||||||
| a+c types | ||||||||||
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Tommotiida
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Eccentrotheca kanesia
Landing et al. 1980
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380 elements | |||||||||
| a+c types, 324 cap shaped sclerite, 1 fused sclerite, 41 broad sclerite | ||||||||||
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Tommotiida
- Tommotiidae
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Camenella baltica
(Bengtson 1970)
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2 elements | |||||||||
| a+c type | ||||||||||
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Tommotiida
- Sunnaginiidae
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Sunnaginia imbricata
Rozanov et al. 1969
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226 elements | |||||||||
| a+c type, 72 right sclerite, 101 left sclerite, 53 indet. fragments | ||||||||||
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Paterinata
- Paterinida
- Paterinidae
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Paterina sp.
Beecher 1891
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1 individual | |||||||||
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Micromitra phillipsi
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41 individuals | |||||||||
| a+c type | ||||||||||
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Lingulata
- Lingulida
- Obolidae
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? Obolus groomi
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5 individuals | |||||||||
| a+c type | ||||||||||
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Stenothecoida
- Cambridioida
- Cambridiidae
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Stenothecoides sp.
Resser 1938
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4 individuals | |||||||||
| a+c type | ||||||||||
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Rostroconchia
- Ribeirioida
- Ischyriniidae
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? Ischyrinia sp.
Billings 1866
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1 individual | |||||||||
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Bivalvia
- Fordillida
- Fordillidae
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Fordilla troyensis
Barrande 1881
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1 individual | |||||||||
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Aculifera
- Halkieriidae
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Halkieria fordi n. sp.
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105 elements | |||||||||
| a+c types, 54 slender sclerite and 51 deltiform sclerite | ||||||||||
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Helcionelloida
- Helcionellidae
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Randomia aurorae
Matthew 1899
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1 individual | |||||||||
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Helcionelloida
- Pelagiellida
- Aldanellidae
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Aldanella attleborensis
(Shaler and Foerste 1888)
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2 individuals | |||||||||
| a+c type | ||||||||||
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Helcionelloida
- Stenothecidae
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? Watsonella terranovica
(Matthew 1899)
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1 individual | |||||||||
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Ginella acutacosta
(Walcott 1890)
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2 individuals | |||||||||
| a+c type | ||||||||||
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unclassified
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Rushtonites asiatica n. sp.
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1 individual | |||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Nova Scotia | County: | Cape Breton Island |
| Coordinates: | 46.0° North, 60.0° West (view map) | ||||
| Paleocoordinates: | 78.9° South, 57.9° West | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Terreneuvian - Series 2 |
| Stage: | Stage 2 - Stage 3 | 10 m.y. bin: | Cambrian 2 |
| *Period: | Early/Lower Cambrian | *Epoch: | Early/Lower Caerfai - Middle Caerfai |
| *International age/stage: | Tommotian - Atdabanian | ||
| Key time interval: | Tommotian - Atdabanian | Trilobite zone: | Camenella baltica |
| Age range of interval: | 525.5 - 515.6 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Bonavista | Formation: | Fosters Point | ||
| Local order: | bottom to top | ||||
| Regional section: | Avalon shale basins | Regional bed: | lithofacies #4 | ||
| Regional order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Deposition shows a series of shoaling intervals. Catalone River bridge CAT-3 | |||||
Lithology and environment
| Primary lithology: | condensed,hardground,oncoidal,red or brown lithified wackestone |
| Secondary lithology: | "shale" |
| Includes fossils? | Y |
| Lithology description: condensed, red oncolitic, fossil wacke-to packstones with intercalated red shale | |
| Environment: | peritidal |
| Geology comments: Deposition controled by epeirogenic extension. The Foster Formation marks a decrease in the rate of epeirogenic subsidence and/or rate of sealevel fall. | |
Taphonomy
| Modes of preservation: | cast,original phosphate |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection methods: | bulk,chemical,mechanical,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Collection shows appearance of abundant orthothecidsand hyolithids which are an important allochem locally. Limonitic or Mn/Fe molds or internal cavities also present. | |
| Taxonomic list comments:There is a presence of oncolites and planar to low LLH mats of cyanobacteria build-ups and indet. trilobite fragments. The indication of a+c type is acid-disaggreation and crack-out. | |
Metadata
| Also known as: | CAT-3, Foster Point Formation, Cape Breton Island, Canada - Landing, 1991 | ||
| Database number: | 6897 | ||
| Authorizer: | M. Patzkowsky | Enterer: | P. Borkow |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2000-04-08 13:34:49 | Last modified: | 2019-02-11 13:56:24 |
| Access level: | the public | Released: | 2000-04-08 13:34:49 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 430. | E. D. Landing. 1991. Upper Precambrian through Lower Cambrian of Cape Breton Island: faunas, paleoenvironments, and stratigraphic revision. Journal of Paleontology 65(4):570-595 [M. Patzkowsky/P. Borkow/J. Alroy] |