GSC loc. 69771: Furongian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Tergomya
- Cyrtonellida
- Cyrtolitidae
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Sinuella sp.
Knight 1947
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Rhynchonellata
- Orthida
- Plectorthidae
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Apheoorthis sp.
Ulrich and Cooper 1936
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= Nanorthis hamburgensis
Walcott 1884
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Loch et al. 1993 | |||||||||
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Trilobita
- Corynexochida
- Illaenuridae
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Ambonolium sp.
Raymond 1924
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Trilobita
- Corynexochida
- Missisquoiidae
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Missisquoia sp.
Shaw 1951
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Trilobita
- Asaphida
- Eurekiidae
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Bayfieldia sp.
Clark 1924
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Corbinia horatio
Walcott 1924
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Loch et al. 1993 | 20 elements | ||||||||
| cranidia + pygidia + librigena | ||||||||||
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Trilobita
- Asaphida
- Ptychaspididae
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Idiomesus sp.
Raymond 1924
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Trilobita
- Ptychopariida
- Kingstoniidae
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Larifugula triangulata
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Loch et al. 1993 | 8 elements | ||||||||
| pygidia | ||||||||||
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Trilobita
- Ptychopariida
- Plethopeltidae
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Leiocoryphe cf. occipitalis
Rasetti 1944
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Plethopeltis obtusus
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Loch et al. 1993 | 1 element | ||||||||
| cranidium | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Alberta |
| Coordinates: | 52.0° North, 116.8° West (view map) | ||
| Paleocoordinates: | 2.4° South, 74.8° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| Key time interval: | Furongian | Trilobite zone: | Eurekia apopsis |
| Age range of interval: | 497 - 485.4 m.y. ago |
Stratigraphy
| Formation: | Survey Peak | Member: | Basal Silty | ||
| Local section: | AC-141 | Local bed: | 22 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Meterage and trilobite zone from Loch et al 1993 | |||||
Lithology and environment
| Primary lithology: | lithified silty grainstone |
| Secondary lithology: | flat-pebble lithified conglomerate |
| Includes fossils? | Y |
| Lithology description: "Mainly interbedded silty calcisiltite grading to calcareous siltstone, thin-bedded, and flat-pebble conglomerate with biocalcarenite matrix, thin- and medium-bedded; minor thin interbeds of shale, olive-grey, calcareous, moderately resistant, ledgy." Aitken and Norford 1967 (p. 200) | |
| Environment: | open shallow subtidal |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 229379 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2023-03-07 14:08:51 | Last modified: | 2023-03-07 14:08:51 |
| Access level: | the public | Released: | 2023-03-07 14:08:51 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 83941. | J. D. Aitken and B. S. Norford. 1967. Lower Ordovician Survey Peak and Outram Formations, southern Rocky Mountains of Alberta. Bulletin of Canadian Petroleum Geology 15(2):150-207 [M. Hopkins/M. Hopkins] |
Secondary references:
| 83940 | J. D. Loch, J. H. Stitt, and J. R. Derby. 1993. Cambrian-Ordovician boundary interval extinctions: Implications of revised trilobite and brachiopod data from Mount Wilson, Alberta, Canada. Journal of Paleontology 67(4):497-517 [M. Hopkins/M. Hopkins] |