BH-95A-114 (Ordovician of Canada)

Where: Newfoundland and Labrador, Canada (51.6° N, 56.0° W: paleocoordinates 30.1° S, 45.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Strigigenalis caudata trilobite zone, Catoche Formation (St. George Group), Cassinian (482.3 - 470.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: peritidal; lithified, massive, gray lime mudstone and wackestone

• "dark gray, light blue-gray and rubbly weathering, massive, moderately bioturbated; burrows, buff weathering, dolomitized, birdseye calcite and white, sparry calcite-lined fenestrae."

Size class: macrofossils

Collected by W. D. Boyce in 1976-87

• Unit was collected at cm scale but trilobite occurrences reported as ranges within unit.

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 106238: authorized by Melanie Hopkins, entered by Melanie Hopkins on 04.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Deuteropoda
  -
Ostracoda indet. Latreille 1802 ostracod
Trilobita
 Asaphida - Asaphidae
Isoteloides peri Fortey 1979 trilobite
 Proetida - Bathyuridae
Strigigenalis caudata Billings 1865 trilobite
"Jeffersonia angustimarginata n. sp." = Jeffersonia jenni Cullison 1944 trilobite
Petigurus nero Billings 1865 trilobite
Bolbocephalus convexus Billings 1865 trilobite
Catochia ornata Fortey 1979 trilobite
Grinnellaspis newfoundlandensis Boyce 1989 trilobite
"Benthamaspis hintzei n. sp." = Benthamaspis conica Fortey 1979 trilobite
Uromystrum affine Poulsen 1937 trilobite
 Proetida - Dimeropygidae
Ischyrotoma parallela n. sp. Boyce 1989 trilobite
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Cephalopoda
  -
Cephalopoda indet. Cuvier 1797
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805