| Argonauta tokunagai Temporal range: Miocene | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Octopoda |
| Family: | Argonautidae |
| Genus: | Argonauta |
| Species: | †A. tokunagai |
| Binomial name | |
| †Argonauta tokunagai Yokoyama, 1913 | |
Argonauta tokunagai is an extinct species of octopus. It was described in 1913 based on fossil material from the Middle Miocene Huzina Formation of Japan.[1]
Undescribed fossil species of Argonauta related to this taxon have been temporarily designated Argonauta cf. tokunagai and Argonauta "tokunagai".[2]
References
- ^ Martill, D.M. & M.J. Barker (2006). A paper nautilus (Octopoda, Argonauta) from the Miocene Pakhna Formation of Cyprus. Palaeontology 49 (5): 1035-1041.
- ^ Yanagisawa, Y. 1990. "Age of fossil Argonautidae (Cephalopoda) from Hokuriku Province (central Honshu, Japan) based on diatom biostratigraphy" (PDF). Archived from the original (PDF) on 2007-09-27. (1.90 MiB) Bull. Geol. Surv. Japan 41(3): 115-127.
- 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.