Trilobita - Proetida - Hystricuridae
Full reference: R. J., J.r. Ross. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161
Belongs to Hystricurus according to R. J., Jr. Ross 1970
See also Ross 1951
Sister taxa: Hystricurus conicus, Hystricurus contractus, Hystricurus crassilimbatus, Hystricurus deflectus, Hystricurus elevatus, Hystricurus penchiensis, Hystricurus robustus, Hystricurus sulcatus, Hystricurus zanderi
Type specimen: YPM 17960, a cephalon/head (cranidium). Its type locality is Locality 6, Hillyard's Canyon, Zone "F", which is in a Stairsian shallow subtidal horizon in the Garden City Formation of Idaho.
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Ordovician of Canada (13: Newfoundland, Newfoundland and Labrador collections), United States (6: Idaho, Utah)
• Canadian of Canada (2: Newfoundland)
• Tremadoc of Canada (1: Alberta)
• Ibexian of Canada (1: Newfoundland and Labrador), United States (1: Nevada)
Total: 24 collections including 25 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.