A new stem sarcopterygian illuminates patterns of character evolution in early bony fishes

doi:10.1038/s41467-017-01801-z

CORC > 古脊椎动物与古人类研究所 > 中国科学院古脊椎动物与古人类研究所 > 古低等脊椎动物研究室

	A new stem sarcopterygian illuminates patterns of character evolution in early bony fishes
	Lu, Jing 1; Giles, Sam 2; Friedman, Matt 2,3,4; Zhu, Min 1
刊名	NATURE COMMUNICATIONS
	2017-12-05
卷号	8
DOI	10.1038/s41467-017-01801-z
文献子类	Article
英文摘要	Discoveries of putative stem sarcopterygians from the late Silurian and Early Devonian of South China have increased our knowledge of the initial diversification of osteichthyans while also highlighting incongruities in character evolution in this major jawed vertebrate group. Character-rich endocrania are incompletely preserved for early bony fishes, limiting a detailed understanding of complex internal morphology and evolutionary changes in the cranium. Here we report a new sarcopterygian (Ptyctolepis brachynotus gen. et sp. nov.) from the Pragian (Early Devonian) of South China, which preserves a unique example of a completely ossified otoccipital division of the braincase in a stem lobe-finned fish. The hyomandibular facets are paired but lie dorsal to the jugular canal, representing a hitherto unobserved combination of derived and primitive character states. This new taxon prompts a reassessment of early osteichthyan interrelationships, including the phylogenetic placement of psarolepids, which might branch from the osteichthyan-rather than sarcopterygian-stem.
WOS关键词	RAY-FINNED FISHES ; COMMON ANCESTOR ; FOSSIL FISH ; OSTEICHTHYES ; ORIGIN ; YUNNAN ; CHINA ; GNATHOSTOME ; ACTINOPTERYGII ; PLACODERM
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000417054600004
资助机构	National Natural Science Foundation of China(41472016 ; Key Research Program of Frontier Sciences of CAS(QYZDJ-SSW-DQC002) ; Strategic Priority Research Program of CAS(XDPB05) ; Christ Church, Oxford ; L'Oreal-UNESCO For Women in Science Fellowship ; Philip Leverhulme Prize ; John Fell Fund ; 41530102)
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/8056]
专题	古脊椎动物与古人类研究所_古低等脊椎动物研究室
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Univ Oxford, Dept Earth Sci, South Parks Rd, Oxford OX1 3AN, England 3.Univ Michigan, Museum Paleontol, 1109 Geddes Ave, Ann Arbor, MI 48109 USA 4.Univ Michigan, Dept Earth & Environm Sci, 1109 Geddes Ave, Ann Arbor, MI 48109 USA
推荐引用方式 GB/T 7714	Lu, Jing,Giles, Sam,Friedman, Matt,et al. A new stem sarcopterygian illuminates patterns of character evolution in early bony fishes[J]. NATURE COMMUNICATIONS,2017,8.
APA	Lu, Jing,Giles, Sam,Friedman, Matt,&Zhu, Min.(2017).A new stem sarcopterygian illuminates patterns of character evolution in early bony fishes.NATURE COMMUNICATIONS,8.
MLA	Lu, Jing,et al."A new stem sarcopterygian illuminates patterns of character evolution in early bony fishes".NATURE COMMUNICATIONS 8(2017).