 |
 |
 |
| __________________________________________________________________________________________ Graptolite Net edited by Piotr Mierzejewski Ph D, the Count of Calmont and Countess Maja A. Korwin-Kossakowska since 2002 |
 |
 |
 |
| General view of a whole colony. From Schiaparelli et al. 2004 |
| SEM micrograph of a zooid. Photo by C. Kulicki |
| The presented material of Cephalodiscus densus was collected by trawl within the framework of the Italian XVII PNRA expedition (austral summer 2001-2002). |
| Cephalodiscus densus Andersson, 1907 |
| Graptolithoidea: Cephalodiscoidea |
| This pterobranch was maintained in aquaria for 2 weeks and their behavior observed. The dissection of some colonies of C. densus allowed the reconstruction of the eggs' fate and the documentation of the formation of a protective shell around the cocoons of larvae settled within the "parental" colony encasement. |
 |
 |
 |