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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.
Portal of Graptolites and Pterobranchs sponsored by M.M. plus M. Vexillology & Flags