Lower and Middle Cambrian trilobits from the Digermul peninsula, Finnmark, northern Norway

Abstract

Ten trilobite species are described. The only Lower Cambrian one is the olenellid Kjerulfia lata from the upper member (D2) of the Doulbasgaissa Formation, previously known from southern Norway. The Middle Cambrian species are from the two lower members (K1, K2) of the overlying Kistedal Formation. The trilobites from K1 are described as Ellipsocephalus cf. hoffii, Eccaparadoxides cf. pusillus and Hydrocephalus cf. carens and are compared to Czechoslovakian and Polish species. The trilobites from K2 are Doryagnostus incertus, first described from southern Norway, the subspecies Peronopsis ferox sallesi, earlier known from France and Spain, Paradoxides davidis, earlier known from various countries including southern Scandinavia, a new species, Nassovia? mjollnir n.sp., and two incompletely known forms, described below as Ptychopariinae gen. et sp. indet. and Anomocarina? sp.. Thus, both Middle Cambrian trilobite faunas differ from the very well documented contemporaneous ones in Southern Scandinavia, but especially the fauna from K1. A striking difference is also the scarcity of agnostid trilobites.