Lihat Juga

• Brief contributions from the Museum of Yale College; the gigantic cephalopds of the North Atlantic
  oleh: Verrill, A. E.
  Terbitan: (1875)
• Occurrence of gigantic cuttlefishes on the coast of Newfoundland
  oleh: Verrill, A. E.
  Terbitan: (1874)
• Cephalopod ID Guide for the North-East Atlantic
  oleh: Drerup, Christian, et al.
  Terbitan: (2019)
• Fig. 14. A in Cephalopods from the Cretaceous/Tertiary Boundary Interval on the Atlantic Coastal Plain, with a Description of the Highest Ammonite Zones in North America. Part 1. Maryland and North Carolina
  oleh: LANDMAN, NEIL H., et al.
  Terbitan: (2004)
• Fig. 2 in Cephalopods from the Cretaceous/Tertiary Boundary Interval on the Atlantic Coastal Plain, with a Description of the Highest Ammonite Zones in North America. Part 1. Maryland and North Carolina
  oleh: LANDMAN, NEIL H., et al.
  Terbitan: (2004)