GSC C-205925. Advance Mountain: Turinian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Conodonta - Prioniodontida
? Phragmodus sp. Branson and Mehl 1933
Aphelognathus aff. palitus
Conodonta - Protopanderodontida - Drepanoistodontidae
Drepanoistodus suberectus (Branson and Mehl 1933)
Conodonta - Panderodontida - Panderodontidae
Panderodus cf. bergstroemi
Panderodus gracilis (Branson and Mehl 1933)
? Belodina confluens Sweet 1979
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: Phragmodus undatus
Age range of interval:457.00000 - 453.70000 m.y. ago
Stratigraphy
Formation:Advance Member:Lower
Local section:Advance Mountain Local bed:62.5-65.5 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:192183
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2018-03-15 00:15:03 Last modified:2018-03-15 10:54:34
Access level:the public Released:2018-03-15 00:15:03
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:

9571 B. S. Norford, G.S. Nowland, T.E. Bolton, R.J. Elias, J. Jin, P.A. Johnson, and D.M. Rohr. 1995. Biostratigraphy of the Advance Formation, a new upper Middle Ordovician unit, northern Rocky Mountains, British Columbia. Ordovician Odyssey: short papers for the seventh international symposium on the Ordovician System 85-88 [S. Holland/S. Holland/P. Wagner]