Newark Supergroup
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The Newark Supergroup, also known as the Newark Group, is an assemblage of Upper Triassic and Lower Jurassic sedimentary and volcanic rocks which outcrop intermittently along the east coast of North A
Late Triassic Balls Bluff siltstone of the Bull Run Formation in Manassas, Virginia
Late Triassic New Oxford Conglomerate in York County, Pennsylvania
Late Triassic Gettysburg Formation in York County, Pennsylvania
Early Jurassic Preakness Basalt, New Jersey
Doswell Formation
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The Doswell Formation is a geologic unit of Upper Triassic age, part of the Newark Supergroup. The Doswell Formation was originally named to refer to a geological sequence which forms the lower part o
Poposaurus gracilis
Dictyopyge macrura
Newark Basin