Trilobita - Asaphida - Ptychaspididae
Synonym: Asioptychaspis Kobayashi 1933
Parent taxon: Ptychaspididae according to P. A. Jell and J. M. Adrain 2002
See also Sepkoski 2002
Sister taxa: Alborsella, Changia, Eoptychaspis, Eowuhuia, Euptychaspis, Idiomesus, Imlerella, Kathleenella, Keithia, Keithiella, Macronoda, Plectrella, Proricephalus, Saukioides, Sunwaptia, Wilcoxaspis
Subtaxa: Asioptychaspis subglobosa Ptychaspis granulosa Ptychaspis miniscaensis Ptychaspis minuta Ptychaspis pustulosa Ptychaspis tuberosa
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of Canada (7: Alberta collections), South Korea (2), United States (41: Idaho, Minnesota, Montana, New York, South Dakota, Wisconsin, Wyoming)
• Taoyuanian of China (2)
Total: 52 collections including 70 occurrences
Specimen images are retrieved through the ePANDDA API.
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