Trilobita

Krattaspis Öpik, 1937

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 Palaeontology 70, 241-257.
Öpik, A. 1937. Trilobiten aus Estland. Acta Univ. Tartu 32, 3, 1-163.
References based on distribution