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Eschara philomela is a prehistoric bryozoan, a marine animal similar to a coral.

Prehistoric Bryozoan

Eschara philomela is a prehistoric bryozoan, a marine animal similar to a coral.

"Their shells are usually of a leathery texture, nearly transparent, and usually spring from a root-stalk of similar consistence, which creeps along upon the surface of stones or aquatic plants, in which situations these animals are not uncommon." — Goodrich, 1859

Plumatella

"Their shells are usually of a leathery texture, nearly transparent, and usually spring from a root-stalk…