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In Stone Fossils

Hoploscaphites (Jeletzkytes) spedeni Ammonite | South Dakota

$60.00 Regular price

This is a rare, Hoploscaphites (Jeletzkytes) spedeni from the Fox Hills Formation of South Dakota. Specimen is approx 2" wide and the hard concretion surrounding it has been meticulously prepared to leave it on a free standing base of rock. Matrix measures approx: 3.5" x 2.25" x 1.5"

The ammonite displays beautiful mother-of-pearl colors with distinguished bumpy nodes along the outer edges. 

 Upper Maastrichtian, Late Cretaceous 

These 70 million year old ammonites lived when South Dakota was a shallow inland sea. It was found preserved in a concretion that was split open. It then underwent many tedious hours of fossil preparation to remove the hard matrix surrounding the fossil.