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| Graptolithoidea | Graptolite Net | Graptolites & Graptoliters | Cephalodiscoidea | Rhabdopleuroidea | Crustoidea | Camaroidea | Tuboidea |
| ________________________________________________________________________________________ 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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| GRAPTOLITHOIDEA: Order Crustoidea |
| Genus Holmicrusta Kozlowski, 1962 |
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| The genus Holmicrusta was founded on the material obtained by Roman Kozlowski from an Ordovician erratic boulder of glacial origin found in Poland. It comprises only, Holmicrusta sombrero, the type species. To the righ you can see the holotype (A, B) of H. sombrero and an isolated apertural apparatus. The genus was named in honor of Edvard Johan Gerhard Holm. |
| updated July 7, 2005 |