Full reference: F. A. Sundberg and L. B. McCollum. 2000. Ptychoparid trilobites of the Lower-Middle Cambrian boundary interval, Pioche Shale, southeastern Nevada. Journal of Paleontology 74(4):604-630
Parent taxon: Ptychopariacea according to F. A. Sundberg and L. B. McCollum 2000
See also Jell and Adrain 2002 and Kiessling 2003
Sister taxa: Elrathina, Hadrocephalites, Kochina, Mexicella
Subtaxa: Eokochaspis cabinensis Eokochaspis delamarensis Eokochaspis longspina Eokochaspis metalaspis Eokochaspis nodosa Eokochaspis piochensis
Type: Eokochaspis nodosa
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Cambrian of Argentina (1 collection), Canada (2: Northwest Territory), United States (33: California, Nevada)
• Solvan of United States (23: Nevada)
Total: 59 collections including 62 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.