GSC C-205921. Advance Mountain: Turinian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Trepostoma indet.
Anthozoa - Stauriida - Streptelasmatidae
Grewingkia burdenensis
Elias 1996
Trilobita
Trilobita informal fragments
Strophomenata - Strophomenida - Sowerbyellidae
Eoplectodonta (Eoplectodonta) alternata (Butts 1942)
Jin and Norford 1996
Strophomenata - Strophomenida - Leptestiidae
Leangella biseptata
Jin and Norford 1996
see common names

Geography
Country:Canada State/province:British Columbia
Coordinates: 56.0° North, 123.3° West (view map)
Paleocoordinates:4.0° North, 63.0° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Sandbian 10 m.y. bin:Ordovician 4
Key time interval:Turinian Conodont zone: Belodina compressa
Age range of interval:457.00000 - 453.70000 m.y. ago
Stratigraphy
Formation:Advance Member:Lower
Local section:Advance Mountain Local bed:11-13 m
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:dolomitic lithified argillaceous "limestone"
Secondary lithology: lithified calcareous "shale"
Includes fossils?Y
Includes fossils?Y
Lithology description: Argillaceous, aphanitic to very fine grained, dark grey, weathering light grey and dull grey, platy, recessive; bedding 2-20 cm, wavy, some beds nodular. Limy shale interbeds 10-150Jo of rocks, olive-grey, weathering dull oli ve-grey; bedding 0.5-3 cm. Rare greyish black chert nodules (with off-white coronae) in upper 5 m.
Environment:slope Tectonic setting:passive margin
Geology comments: environmental interpretation from paper, but this is almost certainly incorrect and no evidence is presented to suggest a slope setting
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Articulated whole bodies:many
Disassociated major elements:some
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:192197
Authorizer:P. Wagner Enterer:P. Wagner
Research group:marine invertebrate
Created:2018-03-15 20:49:24 Last modified:2018-03-15 20:49:24
Access level:the public Released:2018-03-15 20:49:24
Creative Commons license:CC BY
Reference information

Primary reference:
65018. B. S. Norford. 1996. Stratigraphy and biostratigraphy of the Advance Formation, a new upper Middle Ordovician unit, northern Rocky Mountains, British Columbia. Geological Survey of Canada Bulletin 491:5-19 [P. Wagner/P. Wagner/P. Wagner]

Secondary references:

65019 R. Elias. 1996. Corals of the Advance Formation (Upper Middle Ordovician), Northern Rocky Mountains of British Columbia. Geological Survey of Canada Bulletin 491:77-88 [P. Wagner/P. Wagner]
61874 J. Jin and B. S. Norford. 1996. Upper Middle Ordovician (Caradoc) brachiopods from the Advance Formation, northern Rocky Mountains, British Columbia. Geological Survey of Canada Bulletin 491:1-77 [P. Wagner/P. Wagner]