District of Mackenzie Ceraurus mackenziensis zone: Edenian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Nematoporida indet.
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Stenolaemata
- Cryptostomata
- Escharoporidae
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Escharopora sp.
Hall 1847
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Stenolaemata
- Cryptostomata
- Ptilodictyidae
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Ptilodictya sp.
Lonsdale 1839
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Stictopora sp.
Hall 1847
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira sp.
Hall 1862
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Zygospira sulcata
Howe 1965
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Zygospira modesta
(Hall 1847)
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Rhynchonellata
- Orthida
- Dalmanellidae
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? Paucicrura sp.
Cooper 1956
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Rhynchonellata
- Orthida
- Platystrophiidae
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Platystrophia sp.
King 1850
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Rhynchonellata
- Orthida
- Plaesiomyidae
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? Plaesiomys sp.
Hall and Clarke 1892
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Rhynchonellata
- Orthida
- Orthidae
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Boreadorthis sp.
Opik 1934
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Rhynchonellata
- Orthida
- Glyptorthidae
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Glyptorthis sp.
Foerste 1914
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Rhynchonellata
- Orthida
- Hesperorthidae
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Hesperorthis sp.
Schuchert and Cooper 1931
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Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
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Rhynchotrema sp.
Hall 1860
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Lepidocyclus perlamellosus
(Whitfield 1878)
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recombined as Lepidocyclus perlamellosa | ||||||||||
Rhynchonellata
- Rhynchonellida
- Ancistrorhynchidae
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Ancistrorhyncha sp.
Ulrich and Cooper 1942
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Thaerodonta recedens
(Sardeson 1892)
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Sowerbyella (Thaerodonta) recedens | ||||||||||
Sowerbyella sp.
Jones 1928
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena fluctuosa
Billings 1860
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recombined as Nasutimena fluctuosa | ||||||||||
Holtedahlina sulcata
(Hall and Clarke 1892)
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Strophomena sulcata | ||||||||||
Strophomena sp.
Rafinesque and De Blainville 1824
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Strophomena planumbona
(Hall 1847)
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Tetraphalerella sp.
Wang 1949
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Tetraphalerella cooperi
Wang 1949
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recombined as Strophomena (Tetraphalerella) cooperi | ||||||||||
Strophomenata
- Strophomenida
- Furcitellidae
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Oepikina aff. pergibbosa
(Foerste 1917)
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Megamyonia cf. unicostata
(Meek and Worthen 1868)
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina cf. sardesoni
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Ostracoda
- Palaeocopida
- Lomatopisthiidae
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Bolbopisthia sp.
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Ostracoda
- Palaeocopida
- Cryptophyllidae
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Milleratia sp.
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Ostracoda
- Podocopida
- Bairdiocyprididae
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Bairdiocypris cylindrica
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Ostracoda
- Podocopida
- Bairdiidae
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? Krausella cf. acuta
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Krausella inaequalis
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Ostracoda
- Beyrichicopida
- Bolliidae
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Dicranella bicornis
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Ostracoda
- Hollinocopida
- Oepikellidae
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Oepikella labrosa
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Ostracoda
- Hollinocopida
- Eurychilinidae
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Eurychilina prairiensis
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Ostracoda
- Hollinocopida
- Oepikiumidae
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Oepikium sp.
Agnew 1942
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Ostracoda
- Hollinocopida
- Tetradellidae
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Ceratopsis quadrifida
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? Tetradella sp.
Ulrich 1890
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Ostracoda
- Hollinocopida
- Tvaerenellidae
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Diplopsis socialis
Levinson 1961
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Ostracoda
- Leperditellocopida
- Schmidtellidae
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Schmidtella affinis
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Ostracoda
- Leperditellocopida
- Aparchitidae
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Aparchites fimbriatus
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"Aparchites" | ||||||||||
Trilobita
- Odontopleurida
- Odontopleuridae
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Apianurus sp.
Whittington 1956
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Trilobita
- Asaphida
- Asaphidae
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Isotelus sp.
Dekay 1824
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Anataphrus sp.
Whittington 1954
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Trilobita
- Asaphida
- Remopleurididae
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Hypodicranotus aff. striatulus
(Walcott 1875)
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Trilobita
- Lichida
- Lichidae
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Hemiarges cf. paulianus
(Clarke 1894)
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Hemiarges cf. leviculus
Bradley 1930
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Trilobita
- Corynexochida
- Illaenidae
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Bumastoides sp.
(Whittington 1954)
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Trilobita
- Phacopida
- Pterygometopidae
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Calyptaulax sp.
Cooper 1930
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Eomonorachus sp.
Delo 1935
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"Eomonorachus" | ||||||||||
= Denella cumera n. sp.
Ludvigsen and Chatterton 1982
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Ludvigsen and Chatterton 1982 | |||||||||
Calyptaulax lincolnensis
(Branson 1909)
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recombined as Sceptaspis lincolnensis | ||||||||||
"Calyptaulax" | ||||||||||
Chasmops sp. n. sp.
M'Coy 1849
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Trilobita
- Phacopida
- Encrinuridae
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Cybeloides sp.
Slocum 1913
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Trilobita
- Phacopida
- Cheiruridae
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Sphaerocoryphe robustus
Walcott 1875
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corrected as Sphaerocoryphe robusta | ||||||||||
Borealaspis whittakerensis
Ludvigsen 1976
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Borealaspis biformis
Ludvigsen 1976
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Ceraurus mackenziensis n. sp.
Ludvigsen 1979
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? Acanthoparypha goniopyga n. sp.
Ludvigsen 1979
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Ceraurinella brevispina n. sp.
Ludvigsen 1979
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Ceraurinus serratus n. sp.
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Trilobita
- Proetida
- Dimeropygidae
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Dimeropyge sp.
Opik 1937
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Trilobita
- Proetida
- Proetidae
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Cyphoproetus sp.
Kegel 1927
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Trilobita
- Proetida
- Otarionidae
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Otarion cf. trentonensis
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Trilobita
- Harpetida
- Harpetidae
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Dolichoharpes sp.
Whittington 1949
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see common names |
Geography
Country: | Canada | State/province: | Northwest Territories |
Coordinates: | 62.0° North, 127.0° West (view map) | ||
Paleocoordinates: | 7.5° North, 57.8° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | basin |
Time
Period: | Ordovician | Epoch: | Late/Upper Ordovician |
Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
*Period: | Late/Upper Ordovician | *Epoch: | Caradoc | *Local age/stage: | Kirkfieldian - Shermanian |
Key time interval: | Edenian | Trilobite zone: | Ceraurus mackenziensis |
Age range of interval: | 451.10000 - 450.40000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Whittaker | ||||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: Originally given as Kirkfieldian to Shermanian. Was given as Ceraurus mackenziensis member. |
Lithology and environment
Primary lithology: | gray lithified argillaceous "limestone" | ||
Lithology description: thinly bedded, dark grey and argillaceous limestones | |||
Environment: | deep subtidal indet. | Tectonic setting: | passive margin |
Geology comments: Environmental and Tectonic Setting calls by S.M. Holland |
Taphonomy
Modes of preservation: | body,replaced with silica |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | bulk,chemical,field collection |
Reason for describing collection: | biostratigraphic analysis |
Metadata
Database number: | 24636 | ||
Authorizer: | S. Holland, P. Wagner | Enterer: | S. Holland, P. Wagner |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2002-08-12 16:54:55 | Last modified: | 2021-12-28 15:11:24 |
Access level: | the public | Released: | 2002-08-12 16:54:55 |
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:
55610 | R. Ludvigsen and B. D. E. Chatterton. 1982. Ordovician Pterygometopidae (Trilobita) of North America. Canadian Journal of Earth Sciences 19:2179-2206 [M. Hopkins/M. Hopkins] |