Nouvelles espèces de Chitinozoaires à la limite Ludlow-Pridoli en Tchécoslovaquie

Recently biostratigraphical investigations were carried out on the chitinozoans across the Ludlow/Přídolí boundary in Czechoslovakia. The study was part of a larger project, the purpose of which was to propose an international stratotype for the fourth series of the Silurian. Among the abundant material yielded by numerous samples collected from eight sections in the Prague Basin (Barrandian, Bohemia) some species are new: Cingulochitina kolednikensis, Cingulochitina woronai, Calpichitina (Calpichitina) gregaria, Eisenackitina barrandei, and Fungochitina kosovensis. These five stratigraphically important new taxa are described and illustrated.