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It is meant to be a study of species which may be found loose or in the mud balls found along the Pierre Seaway
measured and casted by Craig Sundell
Stretching nearly two feet long
6 million years
Platyrhinops (Amphibamus) lyelli, early amphibian skeleton Baryonyx It is meant to beAmphibians, familiar to most people as frogs, toads, and salamanders, first appeared at the end of the Devonian Period. A notable Pennsylvanian locality is known as Linton, in Jefferson County, Ohio. Waste rock from a coal mine active in the 1800s, represents sediment deposited in a coal swamp lake, perhaps an oxbow lake, that teemed with fishes, including paleoniscoids, lungfishes, and freshwater sharks, and many species of amphibians and even early