GSC O-106028, Grand-Île: Cassinian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Asaphida - Asaphidae
Isoteloides sp. Raymond 1910
Isoteloides canalis (Whitfield 1886)
Trilobita - Proetida - Dimeropygidae
? Ischyrotoma sp. Raymond 1925
Trilobita - Proetida - Bathyuridae
Jeffersonia sp. Poulson 1927
? Bathyurina sp. Poulsen 1937
Jeffersonia cf. timon (Billings 1865)
Strigigenalis caudata (Billings 1865)
Goniotelina subrectus
Trilobita - Proetida - Hystricuridae
Hystricurus cf. deflectus Heller 1954
Rhynchonellata - Orthida - Finkelnburgiidae
Finkelnburgia armanda
Finkelnburgia cullisoni Ulrich and Cooper 1936
Rostroconchia - Ribeirioida - Technophoridae
Ribeiria calcifera Billings 1865
Gastropoda - Murchisoniina - Hormotomidae
Hormotoma artemesia (Billings 1865)
Gastropoda - Euomphalina - Macluritidae
"Maclurites" affinis (Billings 1865)
Gastropoda - Euomphalina - Raphistomatidae
Ceratopea canadensis (Billings 1865)
Gastropoda - Euomphalina - Ophiletidae
Barnesella sp. Bridge and Cloud 1947
see common names

Geography
Country:Canada State/province:Quebec
Coordinates: 45.3° North, 74.1° West (view map)
Paleocoordinates:0.8° North, 95.7° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Ordovician Epoch: Early Ordovician
10 m.y. bin: Ordovician 1-2
Key time interval: Cassinian Conodont zone:  Oepikodus communis
Age range of interval: 482 - 470 m.y. ago
Stratigraphy
Geological group:Beekmantown Formation:Beauharnois Member:Ogdensburg
Stratigraphic resolution:bed
Stratigraphy comments: Strigigenalis caudata Zone
Lithology and environment
Primary lithology:dolomitic lithified "limestone"
Secondary lithology: lithified packstone
Includes fossils?Y
Lithology description: Dolomitic limestone and irregular to lenticular (2-20 cm) beds of bioclasitc packstone and grainstone
Environment:carbonate indet.
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Museum repositories:GSC
Metadata
Database number:50062
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2005-05-05 10:51:53 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-05-05 10:51:53
Creative Commons license:CC0
Reference information

Primary reference:
11493. S. Desbiens, T. E. Bolton, and A.D. McCracken. 1996. Fauna of the lower Beauharnois Formation (Beekmantown Group, Lower Ordovician), Grand île, Quebec. Canadian Journal of Earth Sciences 33(8):1132-1153 [P. Wagner/P. Wagner/P. Wagner]