Synchrotron Tomographic Study of the Permian Kaninospirifer (Brachiopoda, Spiriferida)

Resumo

New characteristic features of five species of Kaninospirifer Kulikov et Stepanov in Stepanov, Kulikov, Sultanaev, 1975 from the Permian of the Kanin Peninsula and South Mongolia were revealed using synchrotron tomography. All studied species of Kaninospirifer have dental plates composed of adminicula and dental flanges and delthyrial plate in the ventral valve. The brachidium structure of the type species of Kaninospirifer, K. kaninensis (Licharew, 1943) is specified. The generic diagnosis is emended and a neotype of type species K. kaninensis is selected. Kaninospirifer is referred to the subfamily Neospiriferinae.