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| _____________________________________________________________________________________ Edited by Piotr Mierzejewski, the Count of Calmont and Countess Maja Anna Korwin-Kossakowska 2004 |
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| _________________________________________________________________________________________________________________ Graptolite Net | Graptolites & Graptoliters | Evolution of Graptolites | Cephalodiscoidea | Rhabdopleuroidea | Scolecodonts |
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| ALGAL NATURE OF THE ORDOVICIAN PRESUMED POLYCHAETE EGGS Piotr Mierzejewski Acta Palaeontologica Polonica 36 (1): 83-86 |
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| R. Kozłowski (1974) reported accumulations of organic vesicles from Ordovician calcareous glacial bulders found in Tertiary deposits in Poland. He interpreted them as eggs of polychete annelids (Polychaeta). Kozłowski's material was reexamined with TEM methods and reinterpreted as presumably blue-green algae (Cyanophyta) or Cyanobacteria. Each specimen, about 1 mm in size, represents irregular accumulation o fine (15-30 micrometers) vesicles. |