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.
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