Trilobita - Ptychopariida - Plethopeltidae
Synonym: Plethometopus Ulrich 1931
Parent taxon: Plethopeltidae according to P. A. Jell and J. M. Adrain 2002
See also Resser 1936 and Sepkoski 2002
Sister taxa: Arapahoia, Exigua, Koldinia, Koldiniella, Kuljumbina, Leiocoryphe, Meniscocoryphe, Notaiella, Plethopeltides, Plethopeltoides, Poriplethopeltis, Pseudokoldinella, Samgonus, Semicyclocephalus, Stenopilus, Strotocephala, Tolstotchichaspis
Subtaxa: Plethometopus acutus Plethometopus angustus Plethometopus armatus Plethometopus convergens Plethometopus dubius Plethometopus laticeps Plethopeltis levis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Ordovician of Argentina (1 collection), Canada (2: Newfoundland and Labrador)
• Cressagian of South Korea (1)
• Tremadoc of Canada (3: Alberta, Newfoundland and Labrador)
• Skullrockian of United States (1: Nevada)
• Cambrian of Canada (19: Alberta, Newfoundland, Newfoundland and Labrador, Quebec), United States (25: Missouri, Montana, Nevada, New Mexico, New York, South Dakota, Texas, Vermont, Wisconsin)
Total: 52 collections including 65 occurrences
Specimen images are retrieved through the ePANDDA API.
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