bed 11: Rhuddanian, Canada
collected by Cocks and Copper

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Crinoida indet.
Strophomenata - Strophomenida - Eopholidostrophiidae
Eopholidostrophia sp. Harper et al. 1967
Strophomenata - Strophomenida - Leptostrophiidae
aff. Leptostrophia reedi Bancroft 1949
Bancroft 1949
Strophomenata - Strophomenida - Rafinesquinidae
cf. Leptaena contermina Cocks 1968
Cocks 1968
Rhynchonellata - Athyridida - Meristellidae
Cryptothyrella ? sp. Cooper 1942
synonym of Hindella
Koigia sp.
Copper and Jin 2014
Rhynchonellata - Atrypida - Septatrypidae
Becscia sp. Copper 1995
Copper and Jin 2014
Rhynchonellata - Atrypida - Atrypinidae
"Atrypina" gamachiana
Twenhofel 1928
Rhynchonellata - Orthida - Dalmanellidae
Isorthis sp. Kozlowski 1929
unclassified
Bryozoa indet. Ehrenberg 1831
Gastropoda
Gastropoda indet. Cuvier 1795
Trilobita
Trilobita indet. Walch 1771
Copper and Jin 2014
Trilobita - Phacopida - Calymenidae
Calymenidae indet. Milne-Edwards 1840
Anthozoa
Rugosa indet. (Milne-Edwards and Haime 1850)
Copper and Jin 2014
Anthozoa - Stauriida
Streptelasmatina indet. Wedekind 1927
see common names

Geography
Country:Canada State/province:Quebec
Coordinates: 49.3° North, 61.8° West (view map)
Paleocoordinates:22.1° South, 35.3° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Silurian Epoch:Llandovery
Stage:Rhuddanian 10 m.y. bin:Silurian 1
Key time interval:Rhuddanian
Age range of interval:443.80000 - 440.80000 m.y. ago
Stratigraphy
Formation:Becscie Member:Fox Cove
Local section:Anticosti localities A216-217 Local bed:Bed 11
Local order:bottom to top
Lithology and environment
Primary lithology:"cross stratification" lithified muddy,calcareous lime mudstone
Secondary lithology: lithified muddy,calcareous "shale"
Includes fossils?Y
Includes fossils?Y
Lithology description: [...] a 7 m thick unit, which we agree with Twenhofel can be taken as the local base of the Becscie Formation. It consists of thinly bedded micrite, with minor calcareous shale partings, and some small-scale cross-bedding and ripples.
Environment:deep subtidal ramp
Glacial or sequence phase:transgressive
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Spatial resolution:allochthonous
Collection methods and comments
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:GSC
Collectors:Cocks and Copper
Metadata
Database number:194353
Authorizer:U. Balthasar Enterer:U. Balthasar
Modifier:U. Balthasar Research group:marine invertebrate
Created:2018-06-18 09:51:55 Last modified:2018-06-18 10:12:48
Access level:the public Released:2018-06-18 09:51:55
Creative Commons license:CC BY
Reference information

Primary reference:
65961. L. R. M. Cocks and P. Copper. 1981. The Ordovician-Silurian boundary at the eastern end of Anticosti Island. Canadian Journal of Earth Sciences 18:1029-1034 [U. Balthasar/U. Balthasar]

Secondary references:

66172 P. Copper and J. Jin. 2014. The revised Lower Silurian (Rhuddanian) Becscie Formation, Anticosti Island, eastern Canada records the tropical marine faunal recovery from the end-Ordovician Mass Extinction. Newsletters on Stratigraphy 47(1):61-83 [U. Balthasar/U. Balthasar]