Questionable Mesozoic foraminifers of the suborder Fusulinina, exemplifiedby Endotriadella ifranensis n. sp., from the Liassic of Morocco

During a revision of the Liassic foraminifera from Morocco, a new species E ndotriadella ifranensis n. sp. was identified in samples of both Orbitopsel la primaeva and Orbitopsella dubari Zones. These species, accurately descri bed herein, is not only important per se, but also allows a discussion on t he phylogeny of some post-Palaeozoic foraminiferal lineages, and about even tual survivals of the suborder Fusulinina, essentially Palaeozoic, during t he Mesozoic times, at least until the Early Jurassic. The other explanation consists in convergences, due to the infaunal habitat of this kind of fora minifer. (C) 2001 Academie des sciences / Editions scientifiques et medical es Elsevier SAS.