21568 - Top Well Prepared 2.45 Inch Zlichovaspis spinifera Lower Devonian Struveaspis It is a tooth of
Yard notes & kiln story
Description
It is a tooth of the lower jaw of a cow shark
Echinoidea - Clypeasteroida - Clypeasteridae
The beautiful orange color of the specimen is due to the natural oxidation of iron sulfides such as pyrite
with most of the mineral manifesting in crusts or small reniform aggregates
Ginglymostoma obliquum
21568 - Top Well Prepared 2.45 Inch Zlichovaspis spinifera Lower Devonian Struveaspis It is a tooth ofImpressive specimen prepared as free standing. Top rare Species.