<i>BENETORUS, GLADIOPSIS</i>AND RELATED GENERA FROM THE CRETACEOUS

Abstract

Species hitherto identified as Pomphodiscus morenoensis (Long, Fuge & Smith) Barker & Meakin (Craspedodiscus morenoensis Long, Fuge & Smith) and Coscinodiscus morenoensis var. sensu Long, Fuge & Smith are transferred to the genus Benetorus Hanna; Coscinodiscus morenoensis Hanna is assigned to a new genus Azpeitiopsis. It has recently been suggested that the above species may be related to Gladius antarcticus Harwood. This investigation proves that they are not so related but belong to two different families, Benetoraceae, fam. nov. and Thalassiosiropsidaceae Nikolaev.