Belongs to Gnathacanthus according to A. S. Woodward 1891
Sister taxa: Physonemus arcuatus, Physonemus asper, Physonemus carinatus, Physonemus gemmatus, Physonemus gigas, Physonemus gigii, Physonemus hamuspiscatorius, Physonemus mirabilis, Physonemus pandatus, Physonemus stellatus, Physonemus striatus, Physonemus subteres, Xystracanthus mirabilis, Xystracanthus major, Xystracanthus giganteus, Xystracanthus acinaciformis, Xystracanthus anceps, Xystracanthus reversus, Xystracanthus gracilis, Batacanthus stellatus, Batacanthus necis, Batacanthus baculiformis, Gnathacanthus triangularis
Type specimen: BMNH P.2892, a partial skeleton. Its type locality is Armagh, Ireland (BMNH), which is in a Mississippian marine limestone in the United Kingdom.
Ecology: nektonic carnivore
Distribution: found only at Armagh, Ireland (BMNH)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.