Acta Palaeontologica Polonica

Tuboid graptolites from erratic boulders of Poland

Piotr Mierzejewski

Acta Palaeontologica Polonica 23 (4), 1978: 557-575

Cyclograptidae (= Idiotubidae) are described from the Ordovician to Silurian erratic boulders of Poland. Some problems involved in tuboid taxonomy and colony organization are considered. One new genus (Kozlowskitubus gen.n.) and three new species (Epigraptus eisenacki sp.n., E. kozlowskii sp.n., Dendrotubus bulmani sp.n.) are erected. Names Idiotubus Kozlowski, 1949, and Idiotubidae Kozlowski, 1949, were recognized for junior synonyms of Epigraptus Eisenack, 1941, and Cyclograptidae Bulman, 1938, respectively.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please see, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.