| Species | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Crassostrea gigas (Thunberg) | + | + | + | + |
| Trapedium (Neotrapedium) liratum (Reeve) | + | + | + | |
| Cerithidea sp., indet. | + |
| Length | References | ||
|---|---|---|---|
| over 30 cm long | Handa Shell Bed, Tsu City, Kakuta, 1986, p. 94; standing in swamps of Hokkaido called Ezogaki or Nagagaki (Kakuta, 1986, p. 94) | ||
| over 35 cm in length | Large and elongate forms are called "Nagagaki" or "Ezogaki." (Habe and Ito, 1965) | ||
| over 30cm long | Kojima, (supervisor), 1987, p. 70. 1 fig, locality not indicated | ||
| attains a maximum length of 40 cm | Oki, 2000, p. 153, 1 fig. | ||
| attain 400mm | "Etremely large shells are usually dredged at depths of between 20 and 40m" (Poppe and Goto, 1993, p. 79) | ||
| Height | Length | Thickness (conjoined valve) | References |
| ca.33cm | 16cm | 6-7cm | Araki, 1959, p. 21, pl. 4, figs. 1a-b, Mitachi Formation, Yokkaichi City, Mie Prefecture, central Japan |
| Specimen 1 (right valve), 309mm+ | 116mm+ | 38mm | Palynosurvey Co., Ltd., 2002, table 2 |
| Specimen 1 (left valve), 334mm+ | 130mm+ | - | Palynosurvey Co., Ltd., 2002, table 2 |
| Specimen 2 (right valve) 320mm+ | 112mm+ | 45mm | Palynosurvey Co., Ltd., 2002, table 2 |
| Specimen 2 (left valve), 307mm+ | 120mm+ | - | Palynosurvey Co., Ltd., 2002, table 2 |
| Locality (and Formation) | References |
| Mitachi and Konobe Formations (Pleistocene), Mie Prefecture | Araki, 1959
|
| Paleo Ise Bay Formation-bluish grey silt of the Mitachi Shell Bed [Mitachi Formation, Kimura et al., 1988], Yokkaichi City; bluish grey deposits of the Kambe Shell Bed, Suzuka City; about 4m (13 shaku) deep, associated with a "brackish"dweller Semisulcospira, Handa Shell Bed, Tsu City, Mie Prefecuture. late Pleistocene (about 30,000 (-40,000) BP) | Kakuta, 1986 |
| In depth of 5m (30,900 BP), ruins of Satomae, Tsu City, Mie Prefecture, central Japan | Palynosurvey Co., Ltd., 2002 |
| Pleistocene, Tanabe City, Wakayama Prefecture, southern Japan | Kojima, (supervisor), 1987 |
| Shiroyama Formation (uppemost middle to lower upper Pleistocene, Editorial Committee of KYUSHU (ed.), 1992, p. 199), Kagoshima Prefecture, Kyushu, southwestern Japan | Geological Association of Kagoshima, ed., 1997, p. 82, 1 fig. |
| living in the subtidal zone forming the oyster reefs at depths between 6-11m of Saroma Lagoon, Hokkaido, attaining in length of about 40cm, which is so-called "Nagagaki" (long oyster) | Goshima, et al., 1995 |
| living in brackish water Saroma-ko (lake) of Hokkaido, northern Japan | Geological Association of Kagoshima (ed.), 1997 |
| Araki, Y., 1959, A Pleistocene marine fauna from near the cities of Tsu and Yokkaichi, Mie Prefecture, southwest Japan. Transactions and Proceedings of the Palaeontological Society of Japan, new series, no. 33, p. 19-22. |
| Editorial Committee of KYUSHU (ed.), 1992, Regional Geology of Japan Part 9 KYUSHU. 371p., Kyoritsu Shuppan, Tokyo. (in Japanese) |
| Habe, T. and Ito, K., 1965, Shells of the World in Colour. Vol. 1. The Northern Pacific. 175p., Hoikusha Publishing Co., Ltd., Osaka, Tokyo, Japan. (in Japanese) |
| Geological Association of Kagoshima (ed.), 1997, Photograph Message from the Earth KAGOSHIMA. 183p., Kibundo, Kagoshima, Japan. (in Japanese) |
| Goshima, S., Fujiyoshi, Y. and Nakao, S., 1995, Estimates of the age and depth of formation of the subutidal oyster reefs in Saroma lagoon, Hokkaido. Benthos Research, no. 48, p. 41-48. (in Japanese with English abstract) |
| Hayasaka, S., 1960, Large-sized oysters from the Japanese Pleistocene
and their paleoecological implications. Science Reports of the Tohoku Universiity,
Sendai, Japan, Second Series (Geology), Special Volume, no. 4, p. 356-370.
|
| Kakuta, T., 1986, Geology and Paleontology of Mie Prefecture. In, Editorial Committee of Nature and Animals of Mie Prefecture, p. 69-103, Mie Ken Ryosho Kanko-kai, Tsu, Mie Japan. (in Japanese) |
| Kimuta, I., Mori, I. and Yamada, J., 1988, Ise Plain area. In, Editorial Commettee of CHUBU II, Regional Geology of Japan Part 5, p. 174-176, Kyouritsu Shuppan, Tokyo (in Japanese). |
| Kirby, M. X., 2000, Paleoecological differences between Tertiary and Quaternary Crassostrea oysters, as revealed by stable isotope sclerochronology. Palaios, vol. 15, no. 2, p. 132-141. |
| Kirby, M. X., 2001, Differences in growth rate between Tertiary and Quaternary Crassostrea oysters. Paleobiology, vol. 27, no. 1, p. 84-103. |
| Kojima, J. (supervisor), 1987, Zukai Chigaku (revised edition). 151p., Daiichi Gakushu Sha, Tokyo, Osaka, HIroshima, Japan. (in Japanese) |
| Mie Prefectural Burial Cultural Asset Center, ed., Mie, News of Mie Maizou Bunkazai Center, p. 1-4. (in Japanese) |
| Palynosurvey Co., Ltd. (2002), "Shizen Kagaku Bunseki." In, Excavation report of the ruins of Satomae, Tsu City, accompanied by the construction of the National road No. 23, Chusei Road (Section 10). Report of the Mie Prefectural Burial Cultural Asset Center, Series 115-18, p. 98-99. (in Japanese) |
| Poppe, G. T. and Goto, Y., 1993, European Seashells. Vol. 2. 221p., Verlag Christa Hemmen, Wiesbaden, Germany. |
| Yamada, J. and Honda, Y., 1982C Crassostrea gigas (Thunberg) from the marine Pleistocene of the west coast area of Ise Bay, southwest Japan. 130th Meeting of the Palaeontological Society of Japan (Mie University). |
