Belongs to Physonemus according to J. Chorn and D. Frailey 1978
Sister taxa: Physonemus arcuatus, Physonemus asper, Physonemus carinatus, Physonemus gemmatus, Physonemus gigas, Physonemus gigii, Physonemus hamuspiscatorius, Physonemus pandatus, Physonemus stellatus, Physonemus striatus, Physonemus subteres, Xystracanthus giganteus, Xystracanthus reversus, Xystracanthus gracilis, Xystracanthus anceps, Xystracanthus mirabilis, Xystracanthus acinaciformis, Xystracanthus major, Gnathacanthus triangularis, Gnathacanthus striatus, Batacanthus baculiformis, Batacanthus necis, Batacanthus stellatus
Ecology: nektonic carnivore
Distribution:
• Permian of United States (1: Kansas collection)
• Carboniferous of United States (2: Kansas, Texas)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.