is edited and periodically updated by
Piotr Mierzejewski, the Count of Calmont and Countess Maja A. Korwin-Kossakowska
since 2002
Graptolithoidea: Dendroidea
Dictyonema macrothecale Kozlowski, 1949
To the right is the holotype of Dictyonema rectithecale
Kozlowski, 1949 from the upper Tremadocian (Lower
Ordovician) of Poland.

  The only specimen of this species was etched out with
hydrofluoric acid from upper Tremadocian cherts from
Kozlowski's classical locality of Wysoczki in the Holy Cross
Mountains, central Poland.



Kozlowski, R. 1949. Les Graptolithes et quelques nouveaux
du Tremadoc de la Pologne. - Palaeontologia Polonica 3: 1-71.