NTS 012I/14, St. John Island: Jeffersonian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Billingsellida - Polytoechiidae
Tritoechia sp. Ulrich and Cooper 1936
Cephalopoda - Bisonocerida - Piloceratidae
Cassinoceras wortheni (Billings 1865)
Piloceras wortheni
Gastropoda - Sinuopeidae
Gastropoda - Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818
Gastropoda - Euomphalina - Raphistomatidae
Ceratopea canadensis (Billings 1865)
Rostroconchia - Conocardiida - Eopteriidae
Euchasma blumenbachi (Billings 1859)
Trilobita - Proetida - Dimeropygidae
Ischyrotoma parallela Boyce 1989
Ischyrotoma anataphra Fortey 1979
Trilobita - Proetida - Bathyuridae
Jeffersonia angustimarginata Boyce 1989
synonym of Jeffersonia jenni
Bolbocephalus convexus (Billings 1865)
Petigurus sp. Raymond 1913
Petigurus groenlandicus Poulsen 1937
Petigurus nero (Billings 1865)
Catochia ornata Fortey 1979
Uromystrum affine (Poulsen 1937)
Bathyurellus affinis
Benthamaspis hintzei Boyce 1989
synonym of Benthamaspis conica
Trilobita - Asaphida - Asaphidae
Isoteloides peri Fortey 1979
Demospongiae - Anthaspidellidae
Archaeoscyphia sp. Hinde 1889
see common names

Geography
Country:Canada State/province:Newfoundland
Coordinates: 50.8° North, 57.2° West (view map)
Paleocoordinates:31.7° South, 49.0° West
Basis of coordinate:stated in text
Time
Period:Ordovician Epoch:Early/Lower Ordovician
10 m.y. bin:Ordovician 1-2
Key time interval:Jeffersonian Trilobite zone: Strigigenalis brevicaudata
Age range of interval:485.40000 - 470.00000 m.y. ago
Stratigraphy
Stratigraphy comments: "Upper 0.80 m of Unit 2 of Knight (1991, page 126), 2.31 to 3.11 m above the base of the formation".
Lithology and environment
Primary lithology: wackestone
Lithology description: "boundstone: mounds, obscure internal structure, rich in skeletal remains, trilobites, sponges, eocrinoids, large gastropods and cephalopods; mounds end to south side of Hunters Point and pass into wackestone rich in gastropods."
Environment:reef, buildup or bioherm
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:1999F088 = 1998F032 = ECW-037 of Boyce and Stouge (1997) = 1984F015 = 1983F161 = 1982F007, K-1982-304-009 of Knight (1991)
Database number:195785
Authorizer:B. Kröger Enterer:B. Kröger
Created:2018-08-24 09:37:27 Last modified:2018-08-24 09:37:27
Access level:the public Released:2018-08-24 09:37:27
Creative Commons license:CC BY
Reference information

Primary reference:
42850. D. M. Rohr, W. D. Boyce, and E. A. Measures. 2008. The rostroconch mollusc Euchasma Billings, 1865 from the Lower Ordovician Catoche Formation, western Newfoundland. Newfoundland Department of Mines and Energy, Report 08(1):79-91 [P. Wagner/P. Wagner]