Bajocian-Bathonian (Middle Jurassic) ammonites from the Polish Jura - Part 1: Families Phylloceratidae, Nannolytoceratidae, Sonniniidae, Strigoceratidae, Oppeliidae and Lissoceratidae
published: Nov 2, 2010
The present paper constitutes a first part of a larger monographic work concerning the systematic descriptions of the Bajocian-Bathonian (Middle Jurassic) ammonite fauna from the Polish Jura, south-central Poland. In the present part, the geological background together with the all ammonite-bearing sections studied is presented, and the systematic description of the ammonite families Phylloceratidae, Nannolytoceratidae, Sonniniidae, Strigoceratidae, Oppeliidae and Lissoceratidae is given. Twenty four species, nine of which left in open nomenclature, representing eight genera (Phylloceras, Calliphylloceras, Nannolytoceras, Sonninia, Strigoceras, Oxycerites, Prohecticoceras and Lissoceras) are described. Their stratigraphic ranges are also shown. Many of the ammonites, especially the oppeliid species, are described in the present paper for the first time.