摘要：In the ammonite fauna of the Upper Scythian (Lower Triassic) three species of the genus Diaplococeras have been defined so far: D. liccanum (HAUER), D. circumplicatus (MOJSISOVICS) and D. connectens (MOJSISOVICS). D. liccanum is (positively) a valid species, and D. circumplicatus and D. connectens are of questionable validity, having been described on the basis of few and also very damaged specimens. During his research of the wider area of Muć village in Central Dalmatia in Croatia, the present author found many more fossils than have been known to date. Five species of the genus Diaplococeras were found, of which three species are new: D. jazinkae, D. tridentatus and D. malici. Material clarifying the question of the validity of the species D. circumplicatus was also found. The material is deposited in the Natural History Museum in Split. The species are elaborated taxonomically and biostratigraphically.
关键词：Ammonites; genus Diaplococeras; Upper Scythian; taxonomy; biostratigraphy; Muć; Croatia
