Eurychilina-Stictopora biofacies, no formation name, Blackriverian and Chazyan,: Chazyan, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Asaphida - Asaphidae
Isotelus sp. Dekay 1824
Ostracoda - Hollinocopida - Oepikellidae
Oepikella sp.
Ostracoda - Hollinocopida - Eurychilinidae
Eurychilina sp. Ulrich 1889
Ostracoda - Palaeocopida - Leperditellidae
Leperditella sp.
Ostracoda - Platycopida - Kloedenellidae
Eukloedenella sp.
originally entered as "Eokloedenella sp."
Strophomenata - Strophomenida - Strophomenidae
Strophomena sp. Rafinesque and De Blainville 1824
Rhynchonellata - Orthida - Plectorthidae
Mimella sp. Cooper 1930
Stenolaemata - Cryptostomata - Ptilodictyidae
Stictoporella sp. Ulrich 1882
Ptilodictya sp. Lonsdale 1839
Stenolaemata - Cryptostomata - Rhinidictyidae
Stictopora sp. Hall 1847
Pachydictya sp. Ulrich 1882
Stenolaemata - Cryptostomata - Arthrostylidae
Ulrichostylus sp. Bassler 1952
Stenolaemata - Phylloporinidae
Phylloporinidae indet. Ulrich 1890
Stenolaemata - Trepostomata
Trepostomata indet. Ulrich 1882
Stenolaemata - Trepostomata - Heterotrypidae
Dekayia sp. Milne-Edwards and Haime 1851
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 - Blackriverian
Key time interval:Chazyan
Age range of interval:468.10000 - 460.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Stratigraphy comments: "M. Ord."
Lithology and environment
Primary lithology: "carbonate"
Environment:shallow subtidal indet. Tectonic setting:passive margin
Geology comments: "carbonate? subtidal, mid-shelf (BA3). 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:313
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 11:18:21
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]