A New Antiarch, Bothriolepis zhujiangyuanensis sp. nov., from the Eifelian(Middle Devonian) of Qujing, Yunnan, SW China

被引：0

作者：

XIAN Zumin ^{[1
]}

PAN Zhaohui ^{[2
,3
]}

WANG Jianhua ^{[4
]}

JIA Liantao ^{[2
,3
]}

ZHAO Yingtian ^{[4
]}

LUO Yanchao ^{[2
,3
]}

ZHU Min ^{[2
,3
]}

机构：

[1] Yunnan Key Laboratory for Palaeobiology, Institute of Palaeontology, Yunnan University

[2] Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences

[3] University of Chinese Academy of Sciences

[4] Qujing Normal

来源：

Acta Geologica Sinica(English Edition) | 2025年 / 99卷 / 01期

关键词：

D O I：

暂无

中图分类号：

Q915 [古动物学]; P534.44 [泥盆纪（系）];

学科分类号：

摘要：

A new species of Bothriolepis(Placodermi, Antiarcha), B. zhujiangyuanensis sp. nov., is described from the Eifelian(Middle Devonian) Shangshuanghe Formation at the Pearl River Source Scenic Area, Qujing, Yunnan Province, southwestern China and is characterized by a broad postpineal plate bearing a straight anterior margin, a premedian plate wider than long, and a weakly developed dorsal median ridge of the trunk shield. As the eighth Bothriolepis taxon in China, B. zhujiangyuanensis sp. nov. provides a wealth of morphological data to clarify the intrageneric interrelationships. Maximum parsimony analysis, using a revised data set of the genus with 76 ingroup taxa and 72 characters, yields a well-resolved consensus tree for Bothriolepis. The phylogenetic result shows a sister-group relationship between B. zhujiangyuanensis and B. babichevi from Kazakhstan, corroborating the biogeographic proximity between the South China and Kazakhstania blocks during the Middle Devonian.

引用

页码：1 / 14

页数：14

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