Elongate Ponderous Ark

Elongate Ponderous Ark
Eontia linula (Conrad 1832)

Fossil Species (extinct)

This old ark has been named by Harry Lee. The genus has changed from Noetia to Eontia. It was figured by info from MacNeal, 1938 in "Tertiary Noetiidae." It has doubled ribs and is elongated in a similar shape as the Zebra Ark. Currently I have about 25 specimens in my collection. I assume it's a localized relic.