BH-53 (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 - 468.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: peritidal; lithified, massive, gray packstone and grainstone

• "blue-gray, thin bedded; thin, irregular, buff dolomitic laminae."

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 106234: authorized by Melanie Hopkins, entered by Melanie Hopkins on 04.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
  -
Cephalopoda indet. Cuvier 1797
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Trilobita
 Proetida - Bathyuridae
Bolbocephalus convexus, "Jeffersonia angustimarginata" = Jeffersonia jenni, "Peltabellia knighti" = Strigigenalis knighti, Grinnellaspis newfoundlandensis
Bolbocephalus convexus Billings 1865 trilobite
"Jeffersonia angustimarginata" = Jeffersonia jenni Cullison 1944 trilobite
"Peltabellia knighti" = Strigigenalis knighti Boyce 1983 trilobite
Grinnellaspis newfoundlandensis Boyce 1989 trilobite
unclassified
  -