Raritan Formation
The Raritan Formation is a Cretaceous sedimentary geologic formation of the Atlantic Coastal Plain.
Overview
The formation was first described in 1888 by G. H. Cook, who measured sections in the vicinity of Raritan Bay in New Jersey. It was extended into Maryland by William Bullock Clark in 1893.The formation is described in the USGS publication Tolchester folio, Maryland as follows:
Fossils
Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus. A tyrannosauroid similar to Appalachiosaurus is known from the formation.Many plant fossils have been recovered from the Raritan. The formation hosts the New Jersey Amber deposits.