1937Krattaspis viridatus n. gen. n. sp. — Öpik, pp. 102, fig. VIII 6; XIII 1-2; text fig. 26
Selection of related publications
Pärnaste, H. 2003.
The Lower Ordovician trilobite Krattaspis: the earliest cyrtometopinid (Cheiruridae) from the Arenig of the east Baltic.Special Papers in Palaeontology70,
241-257.
Öpik, A. 1937.
Trilobiten aus Estland.Tartu Ülikooli Geoloogia Instituudi Toimetused52,
1-163.