New information on the giant Devonian lobe-finned fish Edenopteron from the New South Wales south coast

doi:10.1080/08120099.2019.1651769

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	New information on the giant Devonian lobe-finned fish Edenopteron from the New South Wales south coast
	Young, G. C.1,2; Dunstone, R. L.1; Ollerenshaw, P. J.3; Lu, J.4,5; Crook, B.6
	2019-09-20
发表期刊	AUSTRALIAN JOURNAL OF EARTH SCIENCES
ISSN	0812-0099
卷号	0 期号:0 页码:22
摘要	Edenopteron, with a lower jaw some 48 cm long, and total length perhaps exceeding 3 m, is the largest Devonian lobe-fin known from semi-articulated remains. New material described from the type locality (Boyds Tower, south of Eden) includes three slightly smaller articulated skulls and jaws, and additional bones of the shoulder girdle. Another articulated skull roof, shoulder girdle and palate is described from a second locality (Hegarty Bay), about 10 km south of Boyds Tower. Both localities represent the upper part of the Worange Point Formation, of late Famennian age (uppermost Upper Devonian). The new morphological evidence supports a close relationship to the tristichopterids Mandageria and Cabonnichthys, from the slightly older (Frasnian, Upper Devonian) fossil fish assemblage at Canowindra, New South Wales. Features of the shoulder girdle (supracleithrum, anocleithrum) suggest that Edenopteron is more closely related to Mandageria than Cabonnichthys. Eight characters are used to define a tristichopterid subfamily Mandageriinae, to which Notorhizodon from the Middle Devonian of Antarctica is also referred. The Mandageriinae is endemic to East Gondwana (Australia-Antarctica). In combination with possibly the most primitive tristichopterid, Marsdenichthys from the Frasnian of Victoria, these distributions implicate East Gondwana as a likely place of origin for the entire group. This relates to the major but unresolved question of a possible Gondwana origin for all the land vertebrates (tetrapods). An endemic Gondwanan sub-group (Mandageriinae) of the Devonian fishes closest to land animals (tetrapodomorph tristichopterids) is confirmed. Retention of primitive features (e.g. accessory vomers) points to an earlier origin of the Mandageriinae in East Gondwana, consistent with the Victorian occurrence of another primitive tristichopterid (Marsdenichthys). Edenopteron is confirmed from a second south coast fossil site, and new characters indicate its closest relative is Mandageria from Canowindra, NSW. Congruent evidence of older Gondwanan occurrences in other groups (basal tetrapodomorphs, rhizodontids, canowindrids), and previously dismissed trace fossil evidence (Grampians trackways), implicate South China and East Gondwana as the likely place of origin for all land vertebrates.
关键词	Devonian lobe-finned fish Edenopteron keithcrooki morphology stratigraphy biogeography
DOI	10.1080/08120099.2019.1651769
关键词[WOS]	GOGONASUS-ANDREWSAE LONG ; TRISTICHOPTERID SARCOPTERYGII ; AUSTRALIA ; OSTEOLEPIFORMES ; TETRAPODOMORPHA ; STRATIGRAPHY ; CANOWINDRA ; TRACKWAYS ; VICTORIA
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41872023] ; National Natural Science Foundation of China[41872023] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; Australian Research Council[DP0558499] ; Australian Research Council[DP0558499] ; Australian Research Council[DP0772138] ; Australian Research Council[DP0772138] ; ANU Department of Applied Mathematics Marcelja Fellowship ; ANU Department of Applied Mathematics Marcelja Fellowship
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000487682000001
出版者	TAYLOR & FRANCIS LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/10235
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Young, G. C.
作者单位	1.Australian Natl Univ, Res Sch Phys, Dept Appl Math, Canberra, ACT, Australia 2.Australian Museum Res Inst, Sydney, NSW, Australia 3.159 Millynn Rd, Bywong, NSW 2621, Australia 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 6.52 Daintree Crescent, Kaleen, ACT 2617, Australia
推荐引用方式 GB/T 7714	Young, G. C.,Dunstone, R. L.,Ollerenshaw, P. J.,et al. New information on the giant Devonian lobe-finned fish Edenopteron from the New South Wales south coast[J]. AUSTRALIAN JOURNAL OF EARTH SCIENCES,2019,0(0):22.
APA	Young, G. C.,Dunstone, R. L.,Ollerenshaw, P. J.,Lu, J.,&Crook, B..(2019).New information on the giant Devonian lobe-finned fish Edenopteron from the New South Wales south coast.AUSTRALIAN JOURNAL OF EARTH SCIENCES,0(0),22.
MLA	Young, G. C.,et al."New information on the giant Devonian lobe-finned fish Edenopteron from the New South Wales south coast".AUSTRALIAN JOURNAL OF EARTH SCIENCES 0.0(2019):22.

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