PaleoDB taxon number: 63455
Full reference: S. Conway Morris and J.-B. Caron. 2007. Halwaxiids and the early evolution of lophotrochozoans. Science 315:1255-1258
Sister taxa: none
Type specimen: OU C.'34.8, a skull. Its type locality is Phyllopod Bed, which is in a St Davids/Merioneth offshore shale in the Burgess Shale Formation of Canada.
Ecology: epifaunal grazer