Lower Campanian (Upper Cretaceous) ammonites from the Merchantville Formation of New Jersey, Maryland, and Delaware

The Merchantville Formation of New Jersey, Maryland, and Delaware yields a distinctive assemblage of upper lower Campanian ammonites:Pachydiscus(Pachydiscus) sp.,Pseudoschloenbachiacf.P. chispaensisAdkins, 1929,Placenticeras placenta(DeKay, 1828),Texanites(Texanites) sp.,Menabites(Delawarella)delawarensis(Morton, 1830c),M.(D.)vanuxemi(Morton, 1830c),Menabites(Bererella) sp.,Submortoniceras punctatumCollignon, 1948,S. uddeniYoung, 1963,Cryptotexanites paedomorphicusn. gen. and sp.,Glyptoxocerassp.,Chesapeakella nodatumn. gen. and sp.,Baculites haresiReeside, 1927, andScaphites(Scaphites)hippocrepis(DeKay, 1828) III of Cobban, 1969. Elements of the fauna occur in the Gulf Coast and Western Interior regions of the United States, in Western Europe, and in Madagascar and provide a basis for correlation at this level.