Classification

Phylum : Mollusca Linnaeus 1758

Class : Cephalopoda Cuvier 1797

Subclass : Nautilia Wade 1988

Order : Nautilida Agassiz 1847

Suborder : Temnocheilina Flower 1963

Superfamily : Trigonoceratoidea Hyatt 1884

Family : Grypoceratidae Hyatt 1900 

Genus : Grypoceras Hyatt 1883

Species : sp.

Nomenclatural history

Hyatt 1883 : Grypoceras

Diener 1903 : Nautilus (Grypoceras)

Teichert et al. 1964 : Grypoceras

Parnes 1986 : Grypoceras

Sepkoski 2002 : Grypoceras

Pérez-Valera et al. 2017 : Grypoceras