List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Pterobranchia
- Graptoloidea
- Diplograptidae
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Diplograptus sp.
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Orthograptus sp.
Lapworth 1873
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Cephalopoda
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Nautiloidea indet.
Agassiz 1847
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| orthocone cephalopod | ||||||||||
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Lingulata
- Lingulida
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? Lingulida indet.
Waagen 1885
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| originally entered as "? Lingulida indet." | ||||||||||
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Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanellidae indet.
Schuchert 1913
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Trilobita
- Corynexochida
- Leiostegiidae
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Agerina norrisi
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Trilobita
- Trinucleida
- Alsataspididae
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Spirantyx sp.
Whittard 1961
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Trilobita
- Trinucleida
- Raphiophoridae
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Cnemidopyge norfordi
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Ampyx sp.
(Dalman 1827)
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| original and current combination Asaphus (Ampyx) | ||||||||||
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Lonchodomas sp.
Angelin 1854
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Trilobita
- Asaphida
- Remopleurididae
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Robergiella cf. sagittalis
Whittington 1959
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| originally entered as "Robergiella cf. sagittalis" | ||||||||||
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Trilobita
- Asaphida
- Nileidae
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Peraspis sp.
Whittington 1965
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| originally entered as "Periaspis sp." | ||||||||||
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Trilobita
- Ptychopariida
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Ptychopariida indet.
Swinnerton 1915
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| megistaspid | ||||||||||
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Trilobita
- Phacopida
- Calymenidae
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Platycalymene sp.
Shirley 1936
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Trilobita
- Phacopida
- Cheiruridae
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Kawina sp.
Barton 1916
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Trilobita
- Phacopida
- Encrinuridae
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Staurocephalus sp.
Barrande 1846
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Cybeloides sp.
Slocum 1913
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Agnostida
- Metagnostidae
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Arthrorhachis sp.
Hawle and Corda 1847
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| originally entered as "Arthrorachis sp." | ||||||||||
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Hexactinellida
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? Hexactinellida indet.
Schmidt 1870
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| sponge spicules - originally entered as "? Hexactinellida indet." | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Northwest Territories |
| Coordinates: | 64.5° North, 130.0° West (view map) | ||
| Paleocoordinates: | 9.1° North, 56.3° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | basin |
Stratigraphy
| Formation: | Road River | ||||
| Stratigraphy comments: "Llandeilo-early Caradoc." |
Lithology and environment
| Primary lithology: | black,gray calcareous "shale" |
| Environment: | marine indet. |
| Geology comments: "dark grey to black calcareous shales. slope BA6" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
| Taxonomic list comments:"R.Ludvigsen, 1981 and pers. comm." | |
Metadata
| Database number: | 316 | ||
| Authorizer: | J. Sepkoski | Enterer: | M. Sommers |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 1998-11-20 10:07:18 | Last modified: | 2022-11-12 11:02:50 |
| Access level: | the public | Released: | 1998-11-20 10:07:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 61158. | R. Ludvigsen. 1981. Trilobite biofacies of the Cambrian-Ordovician boundary interval in northern North America. Alcheringa 7(4):301-319 [M. Uhen/J. Ju] |