Planolites constriannulatusisp. nov. from the Late Ordovician Georgian Bay Formation of southern Ontario, eastern Canada

Abstract
Planolites constriannulatus, a new ichnospecies of the ichnogenus Planolites Nicholson 1873, is described from the Late Ordovician Georgian Bay Formation of southern Ontario. This new ichnospecies is characterized by the presence of both concurrent striations and annulations covering the full length of individual specimens.