What is "alaskoceras"

Alaskoceras is a lower Ordovician coiled Nautiloidea cephalopod; the shell moderately expanded, ribbed, with a divergent living chamber; whorl section more broadly rounded ventrally than dorsally; siphuncle marginal at maturity, septal necks short, almost achoanitic; connecting rings thick, layered.

Alaskcoceras belongs to the Tarphycerida, and to the family Estonioceratidae. It was found in Alaska.