First occurence of Haugia cf. variabilis (d'Orbigny) (Ammonoidea) from the Lower Jurassic of the Uminoura area, western Kyushu, Japan

Ryoji Wani; Tohru Ohta; Hiromichi Hirano

doi:10.2517/prpsj.8.123

First occurence of Haugia cf. variabilis (d'Orbigny) (Ammonoidea) from the Lower Jurassic of the Uminoura area, western Kyushu, Japan

Ryoji Wani^*, Tohru Ohta, Hiromichi Hirano

^*Corresponding author for this work

School of Education

Research output: Contribution to journal › Article › peer-review

Abstract

Haugia cf. variabilis (d'Orbigny) has been found in the upper part of the Idenohana Formation in the Uminoura area, Kumamoto Prefecture. This species is originally known from the Upper Toarcian H. variabilis Subzone of the Lytoceras jurense Zone in western Europe. This occurrence combined with our analyses of the lithofacies and sequence stratigraphy suggests that the Idenohana Formation is conformably overlain by the Kyodomari Formation.

Original language	English
Pages (from-to)	123-128
Number of pages	6
Journal	Paleontological Research
Volume	8
Issue number	2
DOIs	https://doi.org/10.2517/prpsj.8.123
Publication status	Published - 2004 Jun 30

Keywords

Ammonoid
Haugia
Idenohana Formation
Kyodomari Formation
Uminoura
Upper Toarcian

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Palaeontology

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10.2517/prpsj.8.123

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title = "First occurence of Haugia cf. variabilis (d'Orbigny) (Ammonoidea) from the Lower Jurassic of the Uminoura area, western Kyushu, Japan",

abstract = "Haugia cf. variabilis (d'Orbigny) has been found in the upper part of the Idenohana Formation in the Uminoura area, Kumamoto Prefecture. This species is originally known from the Upper Toarcian H. variabilis Subzone of the Lytoceras jurense Zone in western Europe. This occurrence combined with our analyses of the lithofacies and sequence stratigraphy suggests that the Idenohana Formation is conformably overlain by the Kyodomari Formation.",

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T1 - First occurence of Haugia cf. variabilis (d'Orbigny) (Ammonoidea) from the Lower Jurassic of the Uminoura area, western Kyushu, Japan

AU - Wani, Ryoji

AU - Ohta, Tohru

AU - Hirano, Hiromichi

PY - 2004/6/30

Y1 - 2004/6/30

N2 - Haugia cf. variabilis (d'Orbigny) has been found in the upper part of the Idenohana Formation in the Uminoura area, Kumamoto Prefecture. This species is originally known from the Upper Toarcian H. variabilis Subzone of the Lytoceras jurense Zone in western Europe. This occurrence combined with our analyses of the lithofacies and sequence stratigraphy suggests that the Idenohana Formation is conformably overlain by the Kyodomari Formation.

AB - Haugia cf. variabilis (d'Orbigny) has been found in the upper part of the Idenohana Formation in the Uminoura area, Kumamoto Prefecture. This species is originally known from the Upper Toarcian H. variabilis Subzone of the Lytoceras jurense Zone in western Europe. This occurrence combined with our analyses of the lithofacies and sequence stratigraphy suggests that the Idenohana Formation is conformably overlain by the Kyodomari Formation.

KW - Ammonoid

KW - Haugia

KW - Idenohana Formation

KW - Kyodomari Formation

KW - Uminoura

KW - Upper Toarcian

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JF - Paleontological Research

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First occurence of Haugia cf. variabilis (d'Orbigny) (Ammonoidea) from the Lower Jurassic of the Uminoura area, western Kyushu, Japan

Abstract

Keywords

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