Modeling scale morphogenesis in a Devonian chondrichthyan and scale growth patterns in crown gnathostomes

doi:10.1080/02724634.2021.1930018

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	Modeling scale morphogenesis in a Devonian chondrichthyan and scale growth patterns in crown gnathostomes
	Cui, Xindong 4,5,6; Qu, Qingming 3; Andreev, Plamen S.1,6; Li, Qiang 1,6; Mai, Huijuan 2; Zhu, Min 4,5,6
刊名	JOURNAL OF VERTEBRATE PALEONTOLOGY
	2021-07-14
卷号	41 期号:2 页码:10
ISSN号	0272-4634
DOI	10.1080/02724634.2021.1930018
英文摘要	Early chondrichthyans (cartilaginous fishes) possess a rich record of scale fossils that have impacted on taxonomic and phylogenetic studies of early jawed vertebrates, but the significance of these scales remains elusive due to the lack of well-defined characters. Gualepis, a scale-based genus from the Lower Devonian of Yunnan, China, was initially recognized as an early chondrichthyan of uncertain affinity. We investigate new material of Gualepis elegans from the type locality. By combining microtomographic data with morphological and histological examination of specimens at successive growth stages, we have reconstructed the 3D growth pattern of the scales. During growth, Gualepis scales added new odontodes appositionally, which has previously been documented in the dermal skeletons of Seretolepis, Kathemacanthus, Parexus, and other crownward members of the stem chondrichthyans. Phylogenetic analysis resolves Gualepis as a non-acanthodid stem chondrichthyan near the crown chondrichthyan node. Our 3D approach is potentially useful to render more reliable scale-based characters, especially regarding scale growth patterns. This study provides the first 3D virtual growth model of stem chondrichthyan scales with a Seretolepis-type morphogenesis, offering new insights into the early evolution of chondrichthyan dermal skeletons.
资助项目	National Natural Science Foundation of China[41530102] ; Key Research Program of Frontier Sciences of CAS[QYZDJ-SSW-DQC002] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA19050102] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26010401]
WOS关键词	PLACODERM SCALES ; ACANTHODII ; GEN. ; REDESCRIPTION ; GYRACANTHIDAE ; EVOLUTION ; BERNACSEK ; ANATOMY ; DINELEY
WOS研究方向	Paleontology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000673805700001
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/18226]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Zhu, Min
作者单位	1.Qujing Normal Univ, Res Ctr Nat Hist & Culture, Qujing 655000, Peoples R China 2.Yunnan Univ, Inst Palaeontol, Yunnan Key Lab Palaeobiol, Kunming 650091, Yunnan, Peoples R China 3.Xiamen Univ, Sch Life Sci, Innovat Ctr Cell Signaling Network, State Key Lab Cellular Stress Biol, Xiamen 361102, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, CAS Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Cui, Xindong,Qu, Qingming,Andreev, Plamen S.,et al. Modeling scale morphogenesis in a Devonian chondrichthyan and scale growth patterns in crown gnathostomes[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2021,41(2):10.
APA	Cui, Xindong,Qu, Qingming,Andreev, Plamen S.,Li, Qiang,Mai, Huijuan,&Zhu, Min.(2021).Modeling scale morphogenesis in a Devonian chondrichthyan and scale growth patterns in crown gnathostomes.JOURNAL OF VERTEBRATE PALEONTOLOGY,41(2),10.
MLA	Cui, Xindong,et al."Modeling scale morphogenesis in a Devonian chondrichthyan and scale growth patterns in crown gnathostomes".JOURNAL OF VERTEBRATE PALEONTOLOGY 41.2(2021):10.