Figure 4. Beishanichthys brevicaudalis gen. et sp. nov. A, C, PKUP V4883. B, holotype (PKUP V4881, counterpart slab). Specimens in right lateral view. See text for definition of abbreviations. Scale bar: 5 mm.Published as part of &lt;i&gt;Xu, Guang-Hui &amp; Gao, Ke-Qin, 2011, A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii, pp. 595-612 in Zoological Journal of the Linnean Society 161 (3)&lt;/i&gt; on page 600, DOI: 10.1111/j.1096-3642.2010.00645.x, &lt;a href="http://zenodo.org/record/10114740"&gt;http://zenodo.org/record/10114740&lt;/a&gt

Aldinger

Allis

Arratia

Bemis

Benton

Berg

Choo

Cloutier

Coates

Cope

Etnier

Friedman

Gardiner

Grande

GUANG-HUI XU

Hallam

Hilton

Hurley

Jarvik

KE-QIN GAO

Lehman

Long

Lund

McElwain

Milner

Nelson

Nielsen

Olsen

Otero

Patterson

Poplin

Rayner

Regan

Rieppel

Romer

Schaeffer

Schultze

Selezneva

Stensiö

Swofford

Sytchevskaya

Ward

Westoll

Wiens

Woodward

Yang

Zoological Journal of the Linnean Society

Figure 6. Beishanichthys brevicaudalis gen. et sp. nov. A, PKUP V4881b, dorsal fin rays of caudal (note that scales failed to extend to caudal tip). B–G, PKUP V4882, showing: anterior dorsal fin rays (B); ridge scales (C); posterior dorsal fin rays (D); caudal fin (E); flank scales (F); and ventral scales (G). H, composite reconstruction based on PKUP V4881–4883, V4885. Scale bar: 3 mm.Published as part of &lt;i&gt;Xu, Guang-Hui &amp; Gao, Ke-Qin, 2011, A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii, pp. 595-612 in Zoological Journal of the Linnean Society 161 (3)&lt;/i&gt; on page 602, DOI: 10.1111/j.1096-3642.2010.00645.x, &lt;a href="http://zenodo.org/record/10114740"&gt;http://zenodo.org/record/10114740&lt;/a&gt

Xu, Guang-Hui

Gao, Ke-Qin

ZENODO

Figure 6 in A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii

Figure 2. Holotype of Beishanichthys brevicaudalis gen. et sp. nov. (PKUP V4881). Specimen in left lateral view. See text for definition of abbreviations. Scale bar: 10 mm.Published as part of Xu, Guang-Hui & Gao, Ke-Qin, 2011, A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii, pp. 595-612 in Zoological Journal of the Linnean Society 161 (3) on page 598, DOI: 10.1111/j.1096-3642.2010.00645.x, http://zenodo.org/record/472013

NEUROSURGERY ENTHUSIASTIC WOMEN SOCIETY

Figure 2 in A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii

Figure 4. Beishanichthys brevicaudalis gen. et sp. nov. A, C, PKUP V4883. B, holotype (PKUP V4881, counterpart slab). Specimens in right lateral view. See text for definition of abbreviations. Scale bar: 5 mm.Published as part of Xu, Guang-Hui & Gao, Ke-Qin, 2011, A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii, pp. 595-612 in Zoological Journal of the Linnean Society 161 (3) on page 600, DOI: 10.1111/j.1096-3642.2010.00645.x, http://zenodo.org/record/472013

Figure 4 in A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii

Figure 6. Beishanichthys brevicaudalis gen. et sp. nov. A, PKUP V4881b, dorsal fin rays of caudal (note that scales failed to extend to caudal tip). B–G, PKUP V4882, showing: anterior dorsal fin rays (B); ridge scales (C); posterior dorsal fin rays (D); caudal fin (E); flank scales (F); and ventral scales (G). H, composite reconstruction based on PKUP V4881–4883, V4885. Scale bar: 3 mm.Published as part of Xu, Guang-Hui & Gao, Ke-Qin, 2011, A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii, pp. 595-612 in Zoological Journal of the Linnean Society 161 (3) on page 602, DOI: 10.1111/j.1096-3642.2010.00645.x, http://zenodo.org/record/472013

A new scanilepiform, Beishanichthys brevicaudalis gen. et sp. nov., is named and described based on fossils from the Lower Triassic lake deposits exposed in Beishan area, Gansu Province, China. The discovery documents a new record of this group, which is significantly older than other known scanilepiforms from China, and is slightly younger than Evenkia from the Lowest Triassic of Central Siberia. Although the Beishan beds were previously interpreted as Late Permian in age, based on megaplant fossils, this new discovery supports the reinterpretation of the deposits as Early Triassic in age, based on vertebrate fossils from the same locality and horizon. Phylogenetic analysis was conducted to resolve the relationships of Scanilepiformes with other actinopterygian clades, and the inter-relationships within Scanilepiformes. Contrary to previous thought that scanilepiforms are closely related to the Amiidae, the phylogenetic results of this study recognize the Scanilepiformes as stem-group neopterygians. Relationships of the Scanilepiformes and Australosomus with other neopterygians remain unresolved. With a characteristic long-based dorsal fin, scanilepiforms represent a small group that emerged in Early Triassic freshwater environments, inhabited Eurasia and North America during the Middle-Late Triassic, briefly invaded the marine environment by the Late Triassic in Europe, and became extinct at the end of Triassic. (C) 2011 The Linnean Society of London, Zoological Journal of the Linnean Society, 2011, 161, 595-612.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000287701500006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701ZoologySCI(E)14ARTICLE3595-61216

Institutional Repository of Peking University

A new scanilepiform from the Lower Triassic of northern Gansu Province,   China, and phylogenetic relationships of non-teleostean Actinopterygii

Figure 7. Calibrated strict consensus of five most parsimonious trees, showing phylogenetic relationships and stratigraphic ranges of Scanilepiformes within the Actinopterygii. Character states supporting the clades include: A, 14 (1), 23 (1), 30 (1)*, 36 (1), 47 (1), 63 (1); B, 11 (1), 26 (1), 37 (1), 57 (1)*, 66 (1); C, 6 (1), 18 (1), 28 (1), 48 (1)*, 50 (1), 52 (1), 53 (1)*, 54 (1)*, 56 (1)*, 68 (1); D, 11 (2), 34 (1); E, 4 (2), 5 (1)*, 7 (1), 27 (1), 29 (1)*; F, 7 (2), 8 (1), 11 (3), 16 (1), 43 (1)*; G, 25 (1), 69 (1); H, 18 (0), 39 (1); I, 9 (1), 17 (1), 22 (1)*, 26 (0); J, 6 (0), 8 (0), 9 (2), 10 (1)*, 11 (4), 20 (1)*, 28 (1), 66 (0), 67 (1)*; K, 13 (1)*, 27 (0), 46 (2); L, 7 (0), 34 (0), 36 (0), 44 (1)*, 47 (0), 68 (0), 69 (0); M, 2 (1), 3 (1)*, 8 (2), 39 (0), 42 (1)*, 50 (0), 63 (2), 70 (1)*, 71 (1)*, 72 (1)*; N, 51 (1)*, 59 (1), 60 (1), 64 (1), 65 (1); O, 27 (2), 61 (1)*; P, 21 (1), 24 (1)*, 38 (1)*, 46 (1), 50 (1), 58 (1)*, 62 (1)*, 68 (0); Q, 2 (0), 19 (1)*, 25 (2), 28 (1), 31 (1)*, 35 (1), 41 (1)*, 49 (1), 64 (1); R, 1 (1)*, 27 (0), 32 (1)*, 33 (1)*, 45 (1)*. Character states with an asterisk have a consistency index of 1.0. Numerical values immediately below the nodes denote Bremer decay indices.Published as part of &lt;i&gt;Xu, Guang-Hui &amp; Gao, Ke-Qin, 2011, A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii, pp. 595-612 in Zoological Journal of the Linnean Society 161 (3)&lt;/i&gt; on page 606, DOI: 10.1111/j.1096-3642.2010.00645.x, &lt;a href="http://zenodo.org/record/10114740"&gt;http://zenodo.org/record/10114740&lt;/a&gt

Figure 7 in A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii

Figure 1. Map showing the type locality of Beishanichthys brevicaudalis gen. et sp. nov. in northern Gansu Province, China.Published as part of &lt;i&gt;Xu, Guang-Hui &amp; Gao, Ke-Qin, 2011, A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii, pp. 595-612 in Zoological Journal of the Linnean Society 161 (3)&lt;/i&gt; on page 596, DOI: 10.1111/j.1096-3642.2010.00645.x, &lt;a href="http://zenodo.org/record/10114740"&gt;http://zenodo.org/record/10114740&lt;/a&gt

Figure 1 in A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii

Crossref

A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii

Xu, Guang-Hui, Gao, Ke-Qin (2011): A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii. Zoological Journal of the Linnean Society 161 (3): 595-612, DOI: 10.1111/j.1096-3642.2010.00645.x, URL: http://dx.doi.org/10.1111/j.1096-3642.2010.00645.

Figure 4 in A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii

Abstract

Similar works

Full text

Available Versions

ZENODO

NEUROSURGERY ENTHUSIASTIC WOMEN SOCIETY

NEUROSURGERY ENTHUSIASTIC WOMEN SOCIETY

NEUROSURGERY ENTHUSIASTIC WOMEN SOCIETY

Institutional Repository of Peking University

ZENODO

ZENODO

Crossref

NEUROSURGERY ENTHUSIASTIC WOMEN SOCIETY

ZENODO