Valhalloceras

Valhalloceras is a genus of nautiloid cephalopods found only in upper Lower Ordovician, Arenigian, carbonates on Svalbard Island and Jan Mayen Island. The type and only species so far named is "Valhalloceras floweri" Evans and King 1990.
"Valhalloceras" is assigned to the Oncocerida, it and the related genus "Phthanoncoceras" are united in the family Phthanoncoceratidae.