Ischyrotoma parallela Boyce 1989 (trilobite)

Trilobita - Proetida - Dimeropygidae

Full 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

Belongs to Ischyrotoma according to W. D. Boyce 1989

Sister taxa: Ischyrotoma anataphra, Ischyrotoma borealis, Ischyrotoma juabensis, Ischyrotoma sila, Ischyrotoma stubblefieldi, Ischyrotoma twenhofeli, Ischyrotoma wahwahensis

Type specimen: NFM F-178, a cephalon/head. Its type locality is BH-95A-114, which is in a Cassinian peritidal lime mudstone/wackestone in the Catoche Formation of Canada.

Ecology: fast-moving low-level epifaunal deposit feeder


• Ordovician of Canada (1: Newfoundland and Labrador collection), Norway (2)

• Cassinian of Canada (2: Newfoundland and Labrador)

• Jeffersonian of Canada (3: Newfoundland, Newfoundland and Labrador)

Total: 8 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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