Conus adversarius

Conus adversarius is an extinct species of "Conus", a venomous sea snail. The sea snail lived in the southeastern United States. The species lived for over 4 million years in the Pliocene. The species died out in the ice age.
Discovery.
The first person to find out about the species was Timothy Abbott Conrad. Timothy named the species after the left-handed shape of the shell, which is different from all other Conus species.