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Pleuromeia discovered from the Middle Triassic Linjia Formation of Benxi, Northeast China
Zhang, Yi1,2; Wang, Yong-Dong3,4; Hong, Yue5; Cao, Liu6; Gao, Fu-liang7
2020-12-01
发表期刊PALAEOWORLD
ISSN1871-174X
卷号29期号:4页码:706-714
摘要

A new species Pleuromeia shaolinii Zhang et Wang n. sp. was established under the family Pleuromeiaceae, based on eight specimens of stems and leaves, cones, rhizophores, and adventitious roots that were recently collected from the Middle Triassic Linjia Formation in Benxi, Northeast China. P. shaolinii n. sp. is similar to the type species P. sternbergii, in the morphology of the stem and rhizophore, but differs from it by the transversely rounded sporophylls organized in a heterosporous cone, and the two conspicuous triangular scars present on both sides of the vascular bundle scar. The Linjia flora, an only reliable Middle Triassic flora in Northeast China, was discovered 40 years ago. Although the Linjia Formation can be compared with the Middle Triassic Ermaying Formation from another area of the North China plate, its age was questionable due to the absence of the Early to Middle Triassic index fossil Pleuromeia. Based on the flora similarity, the zircon dating, lithologic characteristics, presence of a disconformity, and the occurrence of the Middle Triassic-Early Cretaceous insect fossil Sogdoblatta, the age of the Linjia Formation can be confirmed as Middle Triassic. The new species not only supplements our knowledge in biology and taxonomy of Pleuromeia, but also supports the Middle Triassic age assignment of the Linjia flora. (C) 2020 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.

关键词Pleuromeia shaolinii Linjia formation Middle Triassic Northeast China
DOI10.1016/j.palwor.2020.02.004
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[31470324] ; Strategic Priority Program (B) of CAS[XDB18000000] ; Strategic Priority Program (B) of CAS[XDB26000000] ; Shenyang Normal University[054/55440109030] ; Benxi National Geological Park
WOS研究方向Paleontology
WOS类目Paleontology
WOS记录号WOS:000600680200006
项目资助者National Natural Science Foundation of China ; Strategic Priority Program (B) of CAS ; Shenyang Normal University ; Benxi National Geological Park
出版者ELSEVIER
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/37708
专题中国科学院南京地质古生物研究所
通讯作者Zhang, Yi
作者单位1.Shenyang Normal Univ, Coll Paleontol, Shenyang 110034, Peoples R China
2.Minist Nat Resources, Key Lab Evolut Life Northeast, Shenyang 110034, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
5.Shenyang Normal Univ, Lib, Shenyang 110034, Peoples R China
6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
7.Liaoning Inst Geol Explorat Co Ltd, Dalian 116100, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Yi,Wang, Yong-Dong,Hong, Yue,et al. Pleuromeia discovered from the Middle Triassic Linjia Formation of Benxi, Northeast China[J]. PALAEOWORLD,2020,29(4):706-714.
APA Zhang, Yi,Wang, Yong-Dong,Hong, Yue,Cao, Liu,&Gao, Fu-liang.(2020).Pleuromeia discovered from the Middle Triassic Linjia Formation of Benxi, Northeast China.PALAEOWORLD,29(4),706-714.
MLA Zhang, Yi,et al."Pleuromeia discovered from the Middle Triassic Linjia Formation of Benxi, Northeast China".PALAEOWORLD 29.4(2020):706-714.
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