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Choptank Formation, Bed 19 upper part, Calvert Cliffs, Maryland, USA     38.61 N 76.51 E       Serravallian, Middle Miocene
This bed is characterized by corroded and recrystallized tests. As a result a The classification is tends to be difficult or impossible. Nonetheless it was chosen to show the findings.

Bolivina sp.
Epistominella pontoni
Epistominella pontoni
Epistominella pontoni
Bolivina sp., Calvert Cliffs, USA
Epistominella pontoni, Calvert Cliffs, USA
Epistominella pontoni, Calvert Cliffs, USA
Epistominella pontoni, Calvert Cliffs, USA
Textularia sp.
Textularia sp., Calvert Cliffs, USA

Other characteristic microfossils found in this bed:

Ostracode of an unknown species
Ostracode, Calvert Cliffs, USA