On the Systematic Status of the Genus Bathropyramis Haeckel (Radiolaria, Nassellaria)

The systematic position and status of the genus Bathropyramis Haeckel, 1882, restituo et emend. Amon et Vishnevskaya, nov. (Radiolaria, order Nassellaria, family Plectopyramididae) are considered, evaluated and revised. The diagnosis of the reinstated genus Bathropyramis is clarified. The earliest species of the genus, Bathropyramis filatovae Vishnevskaya, 2001, emend. Amon et Vishnevskaya, nov., from the Callovian of the Koryak Highlands, as well as of B. sanjoaquinensis Campbell et Clark, 1944, emend. Amon et Vishnevskaya, nov. from the Upper Maastrichtian of the Koryak–Kamchatka Region, and Cinclopyramis victori (Lipman, 1960), emend. Amon et Vishnevskaya, nov., from the Eocene of Kamchatka are re-described.