AMMONITE FAUNA FROM THE WENONAH FORMATION (UPPER CRETACEOUS) OF NEW-JERSEY

The Wenonah Formation of New Jersey yields an ammonite fauna comprisin g Menuites portlocki (Sharpe, 1855), Placenticeras placenta (DeKay, 18 28), P. minor n. sp., Nostoceras (Nostoceras) puzosiforme n. sp., Nost oceras (Nostoceras) affl N. colubriformis Stephenson, 1941, Didymocera s n. sp., Didymoceras spp., Parasolenoceras sp., Baculites cf. B. scot ti Cobban, 1958, Baculites sp., and Trachyscaphites pulcherrimus (Roem er, 1841). Although commonly regarded as lower Maastrichtian by microp aleontologists, the presence of M. portlocki and T. pulcherrimus is an indicator of upper, but not uppermost, Campanian in a northwest Europ ean sense, and the presence of Baculites cf. B. scotti suggests upperm ost middle Campanian in terms of the Western Interior provincial subst ages.