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Temporal range: Oligocene – Recent
Paper Nautilus Shell.jpg
Eggcase of Argonauta nodosa, showing the derived double keel of the genus
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Octopoda
Superfamily: Argonautoidea
Family: Argonautidae
Cantraine, 1841


The Argonautidae are a family of cephalopods encompassing the modern paper nautiluses of the genus Argonauta along with several extinct genera of shelled octopods.

All eggcases possessing nodes, ribs, and a double keel, with the exception of those of Kapal batavus, have been assigned to Argonauta. Eggcases lacking these morphological features have been placed in the other Argonautidae genera.[1]

Fossil Argonautidae eggcases have been described from Japan, New Zealand, Sumatra, Europe, and California.[1]


Further reading[edit]

  • (in German) Bandel, K. & W.-C. Dullo (1984). Zur Schalenstruktur fossiler und rezenter Argonauta-Gehäuse (Octopoda, Cephalopoda). Natur und Mensch: Jahresmitteilungen der Naturhistorischen Gesellschaft Nürnberg 1984: 33–38.
  • Kaseno Y (1955). "Neogene Argonautinae from Kahoku-gun, Ishikawa Prefecture, Japan". Kanazawa University, Science Reports. 3: 339–344. 
  • Kobayashi T (1954). "Izumonauta, a new genus of the Argonautinae, with a note on their rare but gregarious fossil occurrence". Japanese Journal of Geology and Geography. 25 (1–2): 21–34. 
  • Kobayashi T (1956). "A palaeo-meteorological interpretation to the occurrence of the Argonautinae in Province Kaga, central Japan". Japanese Journal of Geology and Geography. 27 (2–4): 93–104. 
  • Lewy Z (1996). "Octopods: nude ammonoids that survived the Cretaceous-Tertiary boundary mass extinction". Geology. 24 (7): 627–630. doi:10.1130/0091-7613(1996)024<0627:ONATST>2.3.CO;2. 
  • Tomida S.; Shiba M.; Nobuhara T. (2006). "First post-Miocene Argonauta from Japan, and its palaeontological significance". Cainozoic Research. 4 (1–2): 19–25. 
  • (in Japanese) Yanagisawa Y (1990). "Age of fossil Argonautidae (Cephalopoda) from Hokuriku Province (central Honshu, Japan) based on diatom biostratigraphy" (PDF). Bulletin of the Geological Survey of Japan. 41 (3): 115–127. Archived from the original (PDF) on 2007-09-27. 
  • Argonautidae at the Tree of Life Web Project