Graptolite Net
is edited and periodically updated by
Piotr Mierzejewski, the Count of Calmont
since 2002
Portal of Graptolites and Pterobranchs
The discovery of Rhabdopleura (Pterobranchia) in the Jurassic of Poland
Cyprian Kulicki
Acta Palaeontologica Polonica 1969, 14, 4,  538-551

Fragments of tubarium of Rhabdopleura kozlowskii n.sp. etched from calcareous concretions occuring in
Callovian clays in Lapiguz clay pit in Lukow are described. Comparisons with the species
Rh. vistulae
Kozlowski from Danian of Poland and the Recent
Rh. normani Allman from Norway have shown that R.
n.sp. more strongly resembles the Recent species.