While at first glance this arresting occlupanopsid would seem to be mimicking Tridentids in the genus Gibberosus, a closer study reveals a central dential thorn that gently slopes into the oral groove, rather than at an angle. Conversely, the lower oral groove is angled, rather than curved. The paper integument is sturdy with a semi-glossy surface. Artophantasma threnetor was discovered in British Columbia, Canada, by FORC researcher A. Howard, who observed them on several bagged bread products.