The Ecphora inhabited East Coast tidal waters about 5 million years ago, towards the end of the Miocene epoch. During that period, an area of the Atlantic Ocean known as the Salisbury Embayment covered much of present-day Maryland. The Ocean was much higher and warmer then, which allowed for a greater variety of marine organisms to survive in the region, including crocodiles, dolphins, sharks, and whales. Specimens of the Ecphora, trapped in the sediment by receding waters, have been recovered from Calvert Cliffs, Calvert County, and Chancellor Point, St. Mary's County.
Ecphora gardnerae gardnerae (Wilson).
Photo by James P. Reger.
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