• Source: Warrior Formation

      • 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.


      = 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.
      Brachiopods
      Cryptozoon, a type of trace fossil
      Stromatolites


      = Notable Exposures

      =
      Type section: Warrior Creek (formerly Warriorsmark Creek),Huntingdon County
      Section near Waddle, Pennsylvania.


      Age


      Relative age dating places the Warrior Formation in the middle to late Cambrian.


      References

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