Ptychaspis Hall 1863 (trilobite)

Trilobita - Asaphida - Ptychaspididae

Parent taxon: Ptychaspididae according to P. A. Jell and J. M. Adrain 2002

See also Sepkoski 2002

Sister taxa: Alborsella, Changia, Coreanocephalus, Euptychaspis, Idiomesus, Imlerella, Kathleenella, Keithia, Keithiella, Macronoda, Plectrella, Promesus, Proricephalus, Sunwaptia, Wilcoxaspis

Subtaxa: Ptychaspis granulosa Ptychaspis miniscaensis Ptychaspis pustulosa Ptychaspis subglobosa Ptychaspis tuberosa

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Ecology: fast-moving low-level epifaunal deposit feeder

Distribution:

• Cambrian of Canada (7: Alberta collections), China (2), United States (40: Idaho, Minnesota, Montana, New York, South Dakota, Wisconsin)

Total: 49 collections including 67 occurrences

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Specimen images are retrieved through the ePANDDA API.


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