An Eocene cold-water molluscan assemblage from the Poronai Formation in the Mikasa area, central Hokkaido, northern Japan.
|
Accession number;01A0132580
|
| Title;An Eocene cold-water molluscan assemblage from the Poronai Formation in the Mikasa area, central Hokkaido, northern Japan. |
| Author;
SUZUKI A
(Hokkaido Univ. Education, Iwamizawa, Jpn)
|
Journal Title;Earth Science
|
Journal Code:F0193A
|
ISSN:0366-6611
|
|
VOL.54;NO.6;PAGE.363-368(2000)
|
| Figure&Table&Reference;FIG.4, TBL.3, REF.20 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Molluscan fossils from the lower part of the Eocene Poronai Formation (upper middle Eocene) of the Mikasa area of central Hokkaido, northern Japan comprise ten species of bivalves and two species of gastropods. The Malletia poronaica-Cyclocardia tokudai assemblage contains many cold-water genera, such as Malletia. Acila. Portlandia. Cyclocardia, and Neptunea. This assemblage is dominated by M. poronaica and C. tokudai and is associated with P. watasei. Conchocele bisecta, and Periploma besshoense. The Malletia-Cyclocardia assemblage indicates lower sublittoral to upper bathyal, muddy bottom environment. (author abst.) |
|
|
|
Related Articles;
|
|
