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The Niobrara Formation is subdivided into two members: the Fort Hays Limestone Member and the Smoky Hill Chalk Member
Iron compounds created warm reds
including bladed
It lived exclusively in marine environments from approximately 228 million to 61
The genus was relatively small
2.2" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana MEa The Niobrara Formation is subdividedLocation: Speed Quarry, Clark County, Indiana Weight: 0. 7 Ounces Dimensions: 2. 2 Inches Long, 1. 4 Inches Wide, 1. 1 Inches Thick Middle Devonian Age 380 Million Years Old The item pictured is the one you will receive. Colonial Rugose Fossil Coral (Prismatophyllum Prisma) Dare to own a relic from one of nature's boldest experiments in reef formation. During the Devonian period410 million years agocorals entered the oceans with remarkable force,
