Check-lists
* List of countries might not be complete
Links and literature
[1] Kraft J. (1975): Dendroid Graptolites of the Ordovician of Bohemia, Acta Mus. Nat. Prague, 31, 3 - 5 [as Dictyonema krafti Bouček, 1956]
Kraft J. (1975): Dendroid Graptolites of the Ordovician of Bohemia, Acta Mus. Nat. Prague, 31, 3 - 5 [as Dictyonema krafti Bouček, 1956]
[2] Kraft J. (1975): Dendroid Graptolites of the Ordovician of Bohemia, Acta Mus. Nat. Prague, 31, 3 - 5 [as Callograptus hanzliki Kraft, 1975]
Kraft J. (1975): Dendroid Graptolites of the Ordovician of Bohemia, Acta Mus. Nat. Prague, 31, 3 - 5 [as Callograptus hanzliki Kraft, 1975]