Eutrephoceras dekayi with Hoploscaphites- Pierre Shale, Montana | River Walkers Minerals Phantom quartz Please review all photos and

Please review all photos and videos carefully to see the exact quality and condition of this specimen before purchasing

allowing light to illuminate its internal structure while highlighting the crisp cubic form

Locale: Berbes Mining Area

natural contrast

Eutrephoceras dekayi with Hoploscaphites- Pierre Shale, Montana | River Walkers Minerals Phantom quartz Please review all photos andLocale: Pierre Shale Formation, Glendive, Montana, USA Age: Late Cretaceous (~7080 million years old) Dimensions: 1045g, 5 x 4. 5 x 3. 2 An impressive natural association from the famous Pierre Shale of eastern Montana, this specimen features a large Eutrephoceras dekayi preserved in matrix alongside several smaller Hoploscaphites ammonites and numerous marine shell fossils. The dark shell of the nautiloid contrasts beautifully with lighter calcite