Early Devonian (Lochkovian; eurekaensis Zone) conodonts occur in discontinuous limestone beds in the Caballos Novaculite at five localities in the northwestern half of the Marathon uplift, west Texas.
The path eventually drops down to rejoin the Marine Drive close to Hope's Nose. You can take a short detour here to investigate this site of geological interest using the stile opposite. Evidence of ...
There is a narrow belt of limestone called Columbus and Monroe (Devonian) limestone that runs from just south of Columbus north through Delaware and Marion to Lake Erie at Marblehead near Sandusky. In ...
The West Range Limestone is a nodular argillaceous limestone of early Famennian age underlying a broad area in southeastern Nevada. It contains two brachiopod faunas of which the upper one is ...
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