Authors: JAANUSSON V RAMSKOLD L

Citation: V. Jaanusson et L. Ramskold, PTERYGOMETOPINE TRILOBITES FROM THE ORDOVICIAN OF BALTOSCANDIA, Palaeontology, 36, 1993, pp. 743-769

Authors: JAANUSSON V BASSETT MG

Citation: V. Jaanusson et Mg. Bassett, ORTHAMBONITES AND RELATED ORDOVICIAN BRACHIOPOD GENERA, Palaeontology, 36, 1993, pp. 21-63