Argonauta oweri

Argonauta oweri is an extinct species of argonautid octopus. It is known from the early Pliocene of New Zealand.[1][2][3]

Argonauta oweri
Temporal range: Pliocene
Scientific classification edit
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Octopoda
Family: Argonautidae
Genus: Argonauta
A. oweri
Binomial name
Argonauta oweri

The type specimen, a fossilised eggcase, measures 118 mm in diameter. Its aperture is 95 mm high and 40 mm across at its widest point (though it is slightly crushed).[1] It was collected by John R. Ower of Superior Oil Company (after whom it is named) in a "limy concretionary boulder" in Hautapu River, due west of Flat Spur and 1.4 miles (2.3 km) southeast of Utiku, New Zealand.[1]

The fossil was not found in situ and therefore its parent formation is unknown,[3] though Hautapu River flows exclusively through early Pliocene rocks and according to the describing author "the horizon is almost certainly Waitotaran".[1]


  1. ^ a b c d e Fleming, C.A. (1945). "Some New Zealand Tertiary cephalopods" (PDF). Transactions of the Royal Society of New Zealand 74(4): 411–418.
  2. ^ Saul, L.R. & C.J. Stadum (2005). Fossil argonauts (Mollusca: Cephalopoda: Octopodida) from Late Miocene siltstones of the Los Angeles Basin, California. Journal of Paleontology 79(3): 520–531. doi:10.1666/0022-3360(2005)079<0520:FAMCOF>2.0.CO;2
  3. ^ a b Martill, D.M. & M.J. Barker (2006). A paper nautilus (Octopoda, Argonauta) from the Miocene Pakhna Formation of Cyprus. Palaeontology 49(5): 1035–1041. doi:10.1111/j.1475-4983.2006.00578.x