A0094. Becscie River road: Hirnantian, Canada
collected by P. Copper

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Strophomenida - Sowerbyellidae
Sowerbyella (Eochonetes) sp. Reed 1917
Eochonetes glabra (Shaler 1865)
210 specimens
Strophomenata - Strophomenida - Strophomenidae
Leptaena quadrilatera (Logan 1863)
120 specimens
original and current combination Strophomena rhomboidalis
Rhynchonellata - Orthida - Plaesiomyidae
Plaesiomys anticostiensis (Shaler 1865)
Jin and Zhan 2008
recombined as Dinorthis anticostiensis
Rhynchonellata - Orthida - Hesperorthidae
Barbarorthis laurentina (Billings 1857)
Jin and Zhan 2008
recombined as Hesperorthis laurentina
Rhynchonellata - Orthida - Plectorthidae
Hebertella maria (Billings 1862)
Jin and Zhan 2008
Rhynchonellata - Orthida - Dalmanellidae
Onniella tricapitata Jin and Zhan 2008
Jin and Zhan 2008
Rhynchonellata - Atrypida - Atrypinidae
Eospirigerina sp. Schuchert and Cooper 1930
Jin and Zhan 2008
Rhynchonellata - Athyridida - Meristellidae
Hindella sp. Davidson 1882
Jin and Zhan 2008
see common names

Geography
Country:Canada State/province:Quebec County:Anticosti Island
Coordinates: 49.8° North, 64.0° West (view map)
Paleocoordinates:21.9° South, 37.5° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Hirnantian 10 m.y. bin:Ordovician 5
Key time interval:Hirnantian Other zone: Spinachitina taugourdeaui
Age range of interval:445.20000 - 443.40000 m.y. ago
Stratigraphy
Formation:Ellis Bay Member:Lousy Cove
Stratigraphic resolution:bed
Stratigraphy comments: Collection A94 of Dewing 1999. Same collection names are used by Jin 1989, Jin and Zhan 2008, and Li and Copper 2006.
Lithology and environment
Primary lithology:wavy/flaser/lenticular bedding lithified calcareous lime mudstone
Secondary lithology:hummocky CS,very fine lithified calcareous lime mudstone
Lithology description: Member description taken from 2007 Long. Tempestite frequency curves: a key to Late Ordovician and Early Silurian subsidence, sea-level change, and orbital forcing in the Anticosti foreland basin, Quebec, Canada. Can. J. Earth Sci. Vol. 44, 413-431. "At its type section along the northeast coast of Anticosti Island the Lousy Cove Member consists of 15 to 16 m of interbedded, laminated, calcareous mudstone and limestone, with minor sandstones. The upper few metres of the member are dominated by flat to wavy laminated micrites, interbedded with calcareous mudstones. These micrites typically have sharp bases, with a thin layer of disarticulated fossils, and a pitted top. At the west end of the island, the member consists of about 18 m of predominantly nodular to subnodular micrite, with about 10% to 15% interbedded calcareous mudstone. The lower 5 m of the member are recessive and may be dominated by mudstones. The upper 3 m of the member are dominated by hummocky and swaley cross-stratified, very fine sand-grade calcarenites."
Environment:carbonate indet. Tectonic setting:foreland basin
Taphonomy
Modes of preservation:body,original calcite
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:bulk,field collection
Reason for describing collection:taxonomic analysis
Collectors:P. Copper
Taxonomic list comments:Brachiopods only.
Metadata
Database number:158717
Authorizer:S. Finnegan, P. Wagner Enterer:S. Finnegan, P. Wagner
Modifier:S. Finnegan
Created:2014-07-22 15:07:34 Last modified:2016-01-07 12:47:00
Access level:the public Released:2014-07-22 15:07:34
Creative Commons license:CC BY
Reference information

Primary reference:

51869. K. Dewing. 1999. Late Ordovician and Early Silurian strophomenid brachiopods of Anticosti Island, Quebec, Canada. In A. D. McCracken (ed.), Palaeontographica Canadiana 17:1-143 [S. Finnegan/S. Finnegan]

Secondary references:

44576 J. Jin and R. Zhan. 2008. Late Ordovician Orthide and Billingsellide Brachiopods from Anticosti Island, Eastern Canada: Diversity Change Through Mass Extinction. National Research Council of Canada Monograph Series [S. Finnegan/S. Finnegan]