Palaecarcharodon orientalis (Sinzow) (Neoselachii : Cretoxyrhinidae), from the Paleocene of maryland, USA.

Gerard R. Case

Recent collecting of fossil vertebrate remains from the lowermost member of the Aquia Formation (Paleocene), has enabled me to report here for the very fIrst time, the earliest occurrence for the teeth of Palaeocarcharodon in the fossil record of the New World.
This report represents only one species of neoselachian from this locality, the remaining fauna of which will subsequently be described.