MIDDLE DEVONIAN (EIFELIAN) BRACHIOPODS FROM THE SOUTHERN KITAKAMI MOUNTAINS, NORTHEAST JAPAN

A brachiopod fauna from the upper part of the Nakazato Formation, southern Kitakami Mountains, northeast Japan, is nearly similar to the fauna from the top of the Yikewusu Formation (upper Eifelian) in the Zhusilenghaierhan region, western Inner Mongolia. The Nakazato fauna is systematically describ...

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Bibliographic Details
Published in:Journal of paleontology 2003-11, Vol.77 (6), p.1040-1052
Main Authors: CHEN, XIU-QIN, TAZAWA, JUN-ICHI
Format: Article
Language:English
Subjects:
Articulata
Asia
Brachiopoda
correlation
Devonian
Eifelian
Eifelian age
Far East
Fauna
Fossils
Genera
Geology
Honshu
Invertebrata
invertebrate
Iwate Japan
Japan
Kitakami Mountains
Latex
Malurostrophia
Malurostrophia sugiyamai
Maoristrophia
Maoristrophia subquadrata
Middle Devonian
Mollusks
morphology
Mountains
Nakazato Formation
New species
new taxa
northeastern Japan
Paleontology
Paleozoic
Scars
Sediments
Shales
taxonomy
type specimens
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Description
Summary:A brachiopod fauna from the upper part of the Nakazato Formation, southern Kitakami Mountains, northeast Japan, is nearly similar to the fauna from the top of the Yikewusu Formation (upper Eifelian) in the Zhusilenghaierhan region, western Inner Mongolia. The Nakazato fauna is systematically described and consists of 10 species and four indeterminate species assigned to 14 genera. Two new species are designated Maoristrophia subquadrata and Malurostrophia sugiyamai. Brachiopods from the upper part of the Nakazato Formation suggest that the age of the fauna is likely Eifelian.
ISSN:0022-3360
1937-2337
DOI:10.1666/0022-3360(2003)077<1040:MDEBFT>2.0.CO;2