Global Geology 2019, 22(4) 280-288 DOI:   10.3969/j.issn.1673-9736.2019.04.06  ISSN: 1673-9736 CN: 22-1371/P

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Keywords
Araucarian cone-scale complexes
Araucarites kitadaniensis Yabe et Yukawa sp. nov.
Aptian
Early Cretaceous
Japan
Authors
PubMed

Araucarian cone-scale complexes,newly found in Aptian Kitadani Formation of Tetori Group in Fukui Prefecture, Central Japan

Hirokazu Yukawa1, Atsushi Yabe2

1. Fukui Prefectural Dinosaur Museum, Katsuyama, Fukui 911-8601, Japan;
2. Department of Geology and Paleontology, National Museum of Nature and Science, Tsukuba, Ibaraki 305-0005, Japan

Abstract

This study reports on two forms of Araucarian cone-scale complexes from the Aptian Kitadani Formation of the Tetori Group in Fukui Prefecture, Central Japan. One of these has been identified as a new fossil species:Araucarites kitadaniensis Yabe et Yukawa sp. nov. This is the first known occurrence of Araucarian macrofossils from the Tetori Group, indicating that this group was substantially diverse during that time period. This finding concurs with previous palynological investigations at the site, supporting the hypothesis that Araucarian plants began to diversify during Aptian global warming.

Keywords Araucarian cone-scale complexes   Araucarites kitadaniensis Yabe et Yukawa sp. nov.   Aptian   Early Cretaceous   Japan  
Received 2019-10-12 Revised 2019-11-08 Online:  
DOI: 10.3969/j.issn.1673-9736.2019.04.06
Fund:
Corresponding Authors: Atsushi Yabe
Email: yabeatsu@kahaku.go.jp
About author:

References:
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