Originally published as Heteroceras Conradi Morton, 1839. Eubostrycoceras elongatum Whiteaves from the Upper Cretaceous (Santonian) of Maple Bay, Vancouver Island, British Columbia, Canada. Plate 12, Mesozoic Fossils: Volume I, Part II. On The Cretaceous Rocks of Vancouver And Adjacent Islands In The Strait Of Georgia by Josef F. Whiteaves (1879).
