Trilobita - Proetida - Hystricuridae
Alternative combinations: Hystricurus genalatus, Hystricurus genulatus
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 Genalaticurus according to J. M. Adrain et al. 2003
See also Corbett and Banks 1974, Ross 1951 and Ross 1970
Sister taxa: none
Type specimen: YPM 17926, a cephalon/head (cranidium). Its type locality is Locality 6, Hillyard's Canyon, Zone "B", which is in a Gasconadian shallow subtidal horizon in the Garden City Formation of Idaho.
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Ordovician of Australia (1 collection), United States (6: Idaho, Nevada)
• Skullrockian of United States (19: Idaho, Utah)
• Ibexian of United States (1: Nevada)
Total: 27 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.