NTS 012I/14, St. John Island (Ordovician of Canada)

Also known as 1999F088 = 1998F032 = ECW-037 of Boyce and Stouge (1997) = 1984F015 = 1983F161 = 1982F007, K-1982-304-009 of Knight (1991)

Where: Newfoundland, Canada (50.8° N, 57.2° W: paleocoordinates 31.7° S, 49.0° W)

• coordinate stated in text

When: Strigigenalis brevicaudata trilobite zone, Jeffersonian (485.4 - 468.1 Ma)

• "Upper 0.80 m of Unit 2 of Knight (1991, page 126), 2.31 to 3.11 m above the base of the formation".

Environment/lithology: reef, buildup or bioherm; wackestone

• "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."

Size classes: macrofossils, mesofossils

Primary reference: 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]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 195785: authorized by Björn Kröger, entered by Björn Kröger on 24.08.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Proetida - Dimeropygidae
Ischyrotoma anataphra Fortey 1979 trilobite
Ischyrotoma parallela Boyce 1989 trilobite
 Proetida - Bathyuridae
Petigurus sp. Raymond 1913 trilobite
Petigurus nero Billings 1865 trilobite
Petigurus groenlandicus Poulsen 1937 trilobite
Catochia ornata Fortey 1979 trilobite
Bolbocephalus convexus Billings 1865 trilobite
"Jeffersonia angustimarginata" = Jeffersonia jenni Cullison 1944 trilobite
"Benthamaspis hintzei" = Benthamaspis conica Fortey 1979 trilobite
Uromystrum affine Poulsen 1937 trilobite
 Asaphida - Asaphidae
Isoteloides peri Fortey 1979 trilobite
 Billingsellida - Polytoechiidae
Tritoechia sp. Ulrich and Cooper 1936
 Conocardiida - Eopteriidae
Euchasma blumenbachi Billings 1859
 Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818 snail
 Euomphalina - Raphistomatidae
Ceratopea canadensis Billings 1865 snail
 Eogastropoda - Sinuopeidae
Euconia sp. Ulrich and Scofield 1897 snail
 Endocerida - Piloceratidae
Cassinoceras wortheni Billings 1865
 Lithistida - Anthaspidellidae
Archaeoscyphia sp. Hinde 1889 demosponge