Failleana-Krausella biofacies, no formation name, Chazyan: Chazyan, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata
- Orthotetida
- Triplesiidae
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Onychoplecia sp.
Cooper 1956
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Macrocoelia sp.
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synonym of Colaptomena | ||||||||||
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Rostricellula sp.
Ulrich and Cooper 1942
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Chaulistomella sp.
Cooper 1956
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Rhynchonellata
- Orthida
- Glyptorthidae
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Glyptorthis sp.
Foerste 1914
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Rhynchonellata
- Orthida
- Plectorthidae
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Mimella sp.
Cooper 1930
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Pachydictya sp.
Ulrich 1882
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Stictopora sp.
Hall 1847
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Stenolaemata
- Cryptostomata
- Arthrostylidae
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Nematopora sp.
Ulrich 1888
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Helopora sp.
Hall 1851
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Ulrichostylus sp.
Bassler 1952
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Stenolaemata
- Phylloporinidae
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Phylloporinidae indet.
Ulrich 1890
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Stenolaemata
- Trepostomata
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Trepostomata indet.
Ulrich 1882
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Stenolaemata
- Cyclostomata
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Cyclostomata indet.
Busk 1852
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Ostracoda
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Ludvigsenites sp.
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Ostracoda
- Sigmoopsidae
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Oecematobolbina sp.
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Ostracoda
- Palaeocopida
- Cryptophyllidae
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Cryptophyllus sp.
Levinson 1951
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Ostracoda
- Palaeocopida
- Hollinidae
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Winchellatia sp.
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Eohollina sp.
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Ostracoda
- Palaeocopida
- Lomatopisthiidae
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Bolbopisthia sp.
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Ostracoda
- Podocopida
- Steusloffinidae
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Steusloffina sp.
Teichert 1937
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Ostracoda
- Podocopida
- Beecherellidae
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Platyrhomboides sp.
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Ostracoda
- Podocopida
- Bairdiidae
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Krausella sp.
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Ostracoda
- Podocopida
- Bairdiocyprididae
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Bairdiocypris sp.
Kegel 1932
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Ostracoda
- Leperditellocopida
- Primitiidae
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Ectoprimitia sp.
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Ostracoda
- Leperditellocopida
- Schmidtellidae
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Schmidtella sp.
Ulrich 1892
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Ostracoda
- Leperditellocopida
- Aparchitidae
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Aparchites sp.
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Ostracoda
- Hollinocopida
- Euprimitiidae
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Euprimitia sp.
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Ostracoda
- Hollinocopida
- Tetradellidae
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Tetradella sp.
Ulrich 1890
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Ostracoda
- Hollinocopida
- Eurychilinidae
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Eurychilina sp.
Ulrich 1889
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Trilobita
- Harpetida
- Harpetidae
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Dolichoharpes sp.
Whittington 1949
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Trilobita
- Lichida
- Lichidae
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Hemiarges sp.
Gürich 1901
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Amphilichas sp.
Raymond 1905
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originally entered as "Amphilicas sp." | ||||||||||
Trilobita
- Asaphida
- Asaphidae
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Nahannia sp.
Chatterton and Ludvigsen 1976
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originally entered as "Nehannia sp." | ||||||||||
Isotelus sp.
Dekay 1824
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Trilobita
- Asaphida
- Remopleurididae
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Remopleurides sp.
Portlock 1843
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Trilobita
- Corynexochida
- Styginidae
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Failleana sp.
Chatterton and Ludvigson 1976
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Trilobita
- Corynexochida
- Illaenidae
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Bumastoides sp.
(Whittington 1954)
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Nanillaenus sp.
Jaanusson 1954
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Trilobita
- Proetida
- Dimeropygidae
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Dimeropyge sp.
Opik 1937
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Trilobita
- Proetida
- Telephinidae
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Carrickia sp.
Tripp 1965
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synonym of Phorocephala | ||||||||||
originally entered as "Carrichia sp." | ||||||||||
Trilobita
- Odontopleurida
- Odontopleuridae
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Ceratocephala sp.
Warder 1838
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Apianurus sp.
Whittington 1956
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Trilobita
- Phacopida
- Encrinuridae
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Cybeloides sp.
Slocum 1913
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Encrinuroides sp.
Reed 1931
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originally entered as "Eocrinuroides sp." | ||||||||||
Trilobita
- Phacopida
- Cheiruridae
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Acanthoparypha sp.
Whittington and Evitt 1953
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Pandaspinapyga sp.
Esker and Levin 1964
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Ceraurinella sp.
Cooper 1953
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Sphaerexochus sp.
Beyrich 1845
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Heliomeroides sp.
Evitt 1951
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Holia sp.
Bradley 1930
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Trilobita
- Phacopida
- Pterygometopidae
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Calyptaulax sp.
Cooper 1930
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originally entered as "Calyptaulay sp." | ||||||||||
see common names |
Geography
Country: | Canada | State/province: | Northwest Territories |
Coordinates: | 62.0° North, 126.0° West (view map) | ||
Paleocoordinates: | 5.7° North, 59.6° West | ||
Basis of coordinate: | based on political unit |
Time
Period: | Ordovician | Epoch: | Middle Ordovician |
Stage: | Darriwilian | ||
*Period: | Middle Ordovician | *Local age/stage: | Chazyan |
Key time interval: | Chazyan | ||
Age range of interval: | 468.10000 - 460.90000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Stratigraphy comments: "M. Ord., Chazyan, ~=biofacies III of Ludvigsen, 1978" |
Lithology and environment
Primary lithology: | "carbonate" | ||
Environment: | offshore shelf | Tectonic setting: | passive margin |
Geology comments: "carbonate? outer shelf (BA5) ocean facing stable shelf" |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | general faunal/floral analysis |
Taxonomic list comments:"Hayes, 1980. Can. Jour. Earth Sci. 17:1377-1388. Ludvigsen, 1979. Geol Surv. Can. Bull 312. Ross, 1982. NAPC III" |
Metadata
Database number: | 315 | ||
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 11:18:51 |
Access level: | the public | Released: | 1998-11-20 10:07:18 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
6928. | R. Ludvigsen. 1979. A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie. Geological Survey of Canada Bulletin 312:1-98 [S. Holland/S. Holland/J. Ju] |
Secondary references:
60895 | B. J. R. Hayes. 1980. A cluster analysis interpretation of Middle Ordovician biofacies southern MacKenzie Mountains. Canadian Journal of Earth Sciences 17:1377-1388 [M. Uhen/J. Ju/M. Uhen] |