Revision of Parastriatopora gigantea (Knod, 1908) (Anthozoa, Tabulata) from the Devonian of Bolivia

The revision and detailed description of the original material and several topotypic specimens of Parastriatopora gigantea (KNOD, 1908) from the Lower Devonian of Yaco (Bolivia) allow the selection of a lectotype and its diag nosis. A more precise geographic and stratigraphic location of the type loc ality is provided, together with a reassessment of its most probable age (P ragian-Emsian). Present knowledge of South American Devonian tabulate coral s has important implications on their paleobiogeography. Data from Bolivia and Argentina suggest an earlier age for the extinction of Malvinokaffric t axa and reveal a greater abundance and specific diversity.