The Cambrian Warrior Formation is a mapped limestone bedrock unit in Pennsylvania.
Description The Warrior Formation is described by Berg and others as gray, thin- to medium-bedded, fossiliferous, cyclic limestone bearing stromatolites, interbedded with shale, siltstone, and sandstone.Berg, T.M. (compiler), 1980, Geologic map of Pennsylvania: Pennsylvania Geological Survey State Map, 4th series, 1, 1 sheet, scale 1:250,000
Fossils
Trilobites, including Crepicephalus, Cedaria, Llanoaspidella, and Blountia kindlei Resser, Coosella brevis Resser, Kingstonia ara (Walcott), K. kindlei Resser, and other Kingstonia species, Menomonia avitas (Walcott), Blountia, Modocia, Lonchocephalus, Genevievella, Pemphigaspis.Charles Butts, 1945. Hollidaysburg-Huntingdon folio, Pennsylvania, Folios of the Geologic Atlas 227. United States Geological Survey. Brachiopods Cryptozoon, a type of trace fossil Stromatolites
Notable Exposures Type section: Warrior Creek (formerly Warriorsmark Creek),Huntingdon County Section near Waddle, Pennsylvania.Tasch, Paul, 1951, Fauna and Paleoecology of the Upper Cambrian Warrior Formation of Central Pennsylvania, Journal of Paleontology, Vol. 25, No. 3, pp. 275-306, pls. 44-47, May 1951 abstract
Age Relative age dating places the Warrior Formation in the middle to late Cambrian.
References