Isoteloides peri Fortey 1979 (trilobite)

Trilobita - Asaphida - Asaphidae

Full reference: R. A. Fortey. 1979. Early Ordovician trilobites from the Catoche Formation (St. George Group), western Newfoundland. Geological Survey of Canada Bulletin 321:61-114

Belongs to Isoteloides according to R. A. Fortey 1979

Sister taxa: Isoteloides canalis, Isoteloides flexus, Isoteloides polaris, Isoteloides saxosimontis

Type specimen: GSC 56799, a cephalon/head (cranidium). Its type locality is Catoche Formation type section, which is in a Cassinian open shallow subtidal limestone/dolomite in the Catoche Formation of Canada.

Ecology: fast-moving low-level epifaunal carnivore


• Arenig of United States (2: New York, Vermont collections)

• Ordovician of Canada (22: Newfoundland, Newfoundland and Labrador, Quebec), United States (39: Oklahoma)

• Canadian of Canada (2: Newfoundland, Newfoundland and Labrador)

• Skullrockian of Canada (1: Newfoundland)

Total: 66 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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