Hornerstown Formation

Hornerstown Formation
Stratigraphic range: latest Maastrichtian-Danian
TypeGeological formation
Unit ofRancocas Group
UnderliesVincentown Formation
OverliesNew Egypt Formation, Navesink Formation and Tinton Formation
Lithology
PrimaryMarl, greensand
Location
RegionNew Jersey
CountryUnited States
Type section
Named forHornerstown, New Jersey

The Hornerstown Formation is a latest Cretaceous to early Paleocene-aged geologic formation in New Jersey. It preserves a variety of fossil remains, including those of dinosaurs, and contains direct evidence of the mass mortality that occurred at the Cretaceous-Paleogene boundary.

Outcrops of the Hornerstown Formation are known from sites such as Edelman Fossil Park.

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