title: Callovian ammonites from Northeastern Iran
abstract: The present paper includes the description of the Callovian ammonite fauna from the Dalichai Formation, eastern Alborz, Northeastern Iran. The following families are reported: Oppeliidae, Tulitidae, Macrocephalitidae, Pachyceratidae, Reineckeiidae, Perisphinctidae and Aspidoceratidae. Some of the taxa are recorded for the first time from Iran. Altogether, 211 specimens of ammonites belonging to 43 species, 21 genera, and seven families are described. Among the families, Phylloceratidae is the mo
journal: Revista Brasileira de Paleontologia