Conodont BN1A02

Estimated Age: about 450 million years old.
Comments: Scale Bar is 0.5 mm.&nbsp; Dayton Area, Ordovician Silurian Boundary -- teaching materials courtesy of&nbsp; Jeff Bauer.&nbsp; Pb element of Phragmodus undatus .&nbsp; Pastinate with shorter processes and larger cusp.

Conodont BN1A02
Pb element of Phragmodus undatus
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