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| Graptolite Net | Graptolites & Graptoliters | Cephalodiscoidea | Rhabdopleuroidea | Crustoidea | Camaroidea | Tuboidea | Dendroidea |
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| ________________________________________________________________________________________ GRAPTOLITE NET is edited and periodically updated by Piotr Mierzejewski, the Count of Calmont and Countess Maja A. Korwin-Kossakowska since 2002 |
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| NEW ABERRANT SESSILE GRAPTOLITES FROM GLACIAL BOULDERS Piotr Mierzejewski Acta Palaeontologica Polonica 1985, 30, 3/4, 191-199 |
| Two new aberrant sessile graptolites from glacial boulders are described. The Silurian form, Urbanekicrusta reversa gen. et sp. n. is interpreted as a crustoid (hormograptid?) graptolite, whereas the Ordovician (?), Maenniligraptus ursulae gen. et sp.n., represents presumably an unknown order of Graptolithina. |