title: MIDDLE TRIASSIC SPIRIFEROID MENTZELIIDS (BRACHIOPODA) FROM ALPINE AND MEDITERRANEAN AREAS
abstract: Ten species of mentzelioid spiriferids from several Middle Triassic localities of Alpine and Mediterranean areas are analysed both for external and internal characters. The genera Mentzelia, Paramentzelia, Koeveskallina, and the new genus Dagyssia are referred to the subfamily Mentzeliinae, whilst Tethyspira and the new genus Ptychomentzelia are referred to the subfamily Tethyspirinae. In addition, a new species (Ptychomentzelia ritensis) is described. The superfamily Mentzelioidea Dagys, 1974 i
journal: Riviste UNIMI (Università degli studi di Milano)