Artiopoda - Asaphida - Ptychaspididae
Full reference: R. Ludvigsen. 1982. Upper Cambrian and Lower Ordovician trilobite biostratigraphy of the Rabbitkettle Formation, western District of Mackenzie. Life Science Contributions Royal Ontario Museum 134:1-188
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, Keithia, Keithiella, Macronoda, Plectrella, Proricephalus, Ptychaspis, Saukioides, Sunwaptia, Wilcoxaspis
Subtaxa: Kathleenella frontalis Kathleenella subula
Type: Kathleenella subula
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of Canada (10: Alberta, Newfoundland and Labrador, Yukon collections), United States (3: Oklahoma, Texas)
Total: 13 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.