New find of an ammonite in the 'Argille Scagliose' Formation of Montovolo (Bologna)

摘要

A new find of an ammonite is reported from the "Argille Scagliose" Formation (teleallochthonous Ligurides) of Montovolo (Bologna), northern Apennines. The Argille Scagliose is a formation in which Ammonites are almost absent. It is the first ammonite described from the so-called Palombini Shales of the Argille Scagliose Formation; an exceptionally well-preserved specimen which is taxonomically interpreted as Pulchellia (Pulchellia) nov. sp. aff. kiliani (HYATT). This new record allows dating the Palombini Shales into the Barremian.