BH-47 (Ordovician of Canada)

Where: Newfoundland and Labrador, Canada (51.6° N, 56.0° W: paleocoordinates 31.2° S, 47.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Strigigenalis brevicaudata trilobite zone, Barbace Cove Member (Boat Harbour Formation), Jeffersonian (485.4 - 470.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: peritidal; lithified, stromatolitic, gray reef rocks

• "stromatolitic, dark blue-gray. Mounds large, isolated, steep-sided, circular to slightly elliptical...mound interfill consists of lime mudstone, wackestone, packstone, and grainstone, slightly lighter in color than mounds, thin-bedded. Minor thin horizons of lime packstone and grainstone near base of bed."

Size class: macrofossils

Collected by W. D. Boyce in 1976-87

Primary reference: W. D. Boyce. 1989. Early Ordovician trilobite faunas of the Boat Harbour and Catoche Formations (St. George Group) in the Boat-Harbour-Cape Norman area, Great Northern Peninsula, western Newfoundland. Geological Survey Branch, Department of Mines and Energy, Newfoundland and Labrador, Report 89-2 1-168 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 106229: authorized by Melanie Hopkins, entered by Melanie Hopkins on 04.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
  -
Cephalopoda indet.
Cephalopoda indet. Cuvier 1797
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
planispiral, high-spired
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Trilobita
 Proetida - Hystricuridae
Hystricurus crassilimbatus
Hystricurus crassilimbatus Poulsen 1937 trilobite
 Proetida - Bathyuridae
"Bolbocephalus stevensi" = Strigigenalis stevensi, "Peltabellia knighti" = Strigigenalis knighti, Strigigenalis brevicaudata, "Peltabellia crassimarginata" = Strigigenalis crassimarginata, "Benthamaspis hintzei" = Benthamaspis conica, Bolbocephalus convexus
"Bolbocephalus stevensi" = Strigigenalis stevensi Boyce 1989 trilobite
"Peltabellia knighti" = Strigigenalis knighti Boyce 1983 trilobite
Strigigenalis brevicaudata Boyce 1989 trilobite
"Peltabellia crassimarginata" = Strigigenalis crassimarginata Cullison 1944 trilobite
"Benthamaspis hintzei" = Benthamaspis conica Fortey 1979 trilobite
Bolbocephalus convexus Billings 1865 trilobite
 Asaphida - Symphysurinidae
Randaynia langdoni n. sp.
Randaynia langdoni n. sp. Boyce 1989 trilobite