Locality information


Stratigraphic Column


Map of locality in New Jersey.


Drawn after S. W. Petters, 1976.

Raritan Formation was exposed at the Old Crossman Clay Pit, in Sayreville, New Jersey, USA. The site is presently filled in and is no longer open for collection. Drs. Crepet and Nixon have collected several tons of material before the closure and subsequent grading and plantings.

These sediments have been dated by palynological means as Turonian in age (Late Cretaceous, 88.5-90.4 MYBP)

The stratigraphic position of the studied material is the South Amboy Fire Clay, Raritan Formation. The Raritan sediments consist of a series of interlensing gravels, sands, and clays. The depositional environment is thought to be a deltaic/fluvial system.

The paleoenvironment, reconstructed from the micro and megaflora and depositional profiles, was tropical to subtropical.

Please see these references for further information:

Crepet, W. L. and Nixon, K. C., 1998. American Journal of Botany 85: 1122–1133.
Crepet, W. L., et al., 2001. Asociación Paleontológica Argentina. Publicación Especial 7. VII International Symposium on Mesozoic Terrestrial Ecosystems: 61-69.
Jengo, J. W., 1995. Northeastern Geology and Environmental Sciences 17: 223-246.
Lubkin, S. H., 2003. Acta Zoologica Cracoviensia 46 (suppl.- Fossil Insects): 189-194.
Martínez-Millán, M.,et al., 2009. American Journal of Botany 96:933-949.
Petters, S. W., 1976. American Association of Petrolium Geologists Bulletin 60: 81-107.