Shiono, Masamichi and Koizumi, Itaru (2002): Taxonomy of Azpeitia endoi and A. tabularis (Bacillariophyta) in middle Miocene to Recent materials from the North and Northwest Pacific Ocean
Leg/Site/Hole:
Related Expeditions:
DSDP 86
Identifier:
ID:
2003-056018
Type:
georefid
Creator:
Name:
Shiono, Masamichi
Affiliation:
Hokkaido University, Division of Biological Sciences, Sapporo, Japan
Role:
author
Name:
Koizumi, Itaru
Affiliation:
Role:
author
Identification:
Title:
Taxonomy of Azpeitia endoi and A. tabularis (Bacillariophyta) in middle Miocene to Recent materials from the North and Northwest Pacific Ocean
Year:
2002
Source:
Micropaleontology
Publisher:
American Museum of Natural History, New York, NY, United States
Volume:
48
Issue:
1
Pages:
67-78
Abstract:
Both Azpeitia endoi and Azpeitia tabularis, which are referred to the Azpeitia tabularis group, are described based on light microscope and SEM observations. Samples came from living material collected on the KH99-3 cruise in the Bering Sea, from fossil Pliocene and Pleistocene material in DSDP Holes 579A and 580 in the northwest Pacific Ocean, and from the Middle Miocene of the Oga Peninsula, northeast Japan. Both these species occurred in the Middle Miocene, and A. endoi has the central depression which is common feature in the genus Azpeitia, while A. tabularis does not. Since A. tabularis does not posses the central depression, A. endoi is considered to represent the ancestral condition for A. tabularis.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:41.3729 West:139.4000 East:
153.5835 South:38.3736
Keywords: Paleobotany; Akita Japan; algae; Asia; Azpeitia; Azpeitia endoi; Azpeitia tabularis; Bering Sea; Cenozoic; Deep Sea Drilling Project; diatoms; DSDP Site 579; DSDP Site 580; Far East; Honshu; IPOD; Japan; Leg 86; microfossils; Miocene; morphology; Neogene; North Pacific; Northwest Pacific; Oga Peninsula; Onnagawa Formation; Pacific Ocean; Plantae; Pliocene; Quaternary; SEM data; taxonomy; Tertiary; West Pacific;
.