Morphobank

Project 1118: Y. Zhu, M. Zhu. 2013. A redescription ofKiangyousteus yohii(Arthrodira: Eubrachythoraci) from the Middle Devonian of China, with remarks on the systematics of the Eubrachythoraci. Zoological Journal of the Linnean Society. 169 (4):798-819.

Specimen: † Kiangyousteus (IVPP:V801)
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Abstract

Kiangyousteus yohii Liu, 1955, is a eubrachythoracid arthrodire fish (Placodermi) from the Middle Devonian Guanwu Formation of south‐western China. Although Kiangyousteus was the first arthrodire described in China, its phylogenetic position within the Eubrachythoraci remained uncertain because of a lack of diagnostic data in previous studies. A detailed redescription of this taxon reveals similarities to Dunkleosteus terrelli in the possession of transverse articular facets on the parasphenoid and the lack of adsymphyseal denticles on the anterior supragnathal. Our phylogenetic analysis assigned K. yohii to the family Dunkleosteidae, which includes Eastmanosteus calliaspis, Eastmanosteus pustulosus, Golshanichthys asiatica, Heterostius ingens, Xiangshuiosteus wui, and Dunkleosteus. The analysis also yielded several new scenarios on eubrachythoracid interrelationships, notably the sister‐group relationship between Coccosteomorphi and Aspinothoraci, the polyphyly of the referred species of Eastmanosteus, and the assignment of Heterostius and Xiangshuiosteus within the Dunkleosteoidea.

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Article DOI: 10.1111/zoj.12089

Project DOI: 10.7934/P1118, http://dx.doi.org/10.7934/P1118

This project contains	Matrices
1 Media 1 Matrix 1 Document 37 Taxa 1 Specimen 98 Characters Total size of project's media files: 171.05k Download Project SDD File	Total scored cells: 2491 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 98 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 220 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:98/0

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MorphoBank Project 1118

Creation Date:
13 January 2014
Publication Date:
16 January 2014
Media downloads: 3
Matrix downloads: 7

Authors' Institutions

Chinese Academy of Sciences

Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), CAS

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Taxonomic Overview for Matrix 'M2462' (37 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Dicksonosteus Taxon name last Modified on 01/15/14	15	80	80	0	3	0	0	4
[2] † Holonema Taxon name last Modified on 01/15/14	15	80	78	0	5	0	0	4
[3] † Buchanosteus Taxon name last Modified on 01/15/14	36	60	59	0	3	0	0	4
[4] † Homosteus Taxon name last Modified on 01/15/14	30	63	63	0	5	0	0	4
[5] † Coccosteus Taxon name last Modified on 01/15/14	5	91	89	0	4	0	0	4
[6] † Harrytoombsia Taxon name last Modified on 01/15/14	9	84	84	0	5	0	0	4
[7] † McNamaraspis Taxon name last Modified on 01/15/14	6	89	89	0	3	0	0	4
[8] † Compagopiscis Taxon name last Modified on 01/15/14	6	88	88	0	4	0	0	4
[9] † Incisoscutum ritchiei Taxon name last Modified on 01/15/14	8	85	85	0	5	0	0	4
[10] † Incisoscutum sarahae Taxon name last Modified on 01/15/14	9	84	84	0	5	0	0	4
[11] † Latocamurus Taxon name last Modified on 01/15/14	12	83	83	0	3	0	0	4
[12] † Camuropicislaidlawi Taxon name last Modified on 01/15/14	20	76	76	0	2	0	0	4
[13] † Rolfosteus Taxon name last Modified on 01/15/14	13	79	79	0	6	0	0	4
[14] † Tubonasus Taxon name last Modified on 01/15/14	24	71	71	0	3	0	0	4
[15] † Fallocosteus turneri Taxon name last Modified on 01/15/14	14	82	82	0	2	0	0	4
[16] † Dinichthys Taxon name last Modified on 01/15/14	86	12	12	0	0	0	0	4
[17] † Gorgonichthys Taxon name last Modified on 01/15/14	33	57	57	0	8	0	0	4
[18] † Hadrosteus Taxon name last Modified on 01/15/14	36	59	57	0	5	0	0	4
[19] † Heintzichthys Taxon name last Modified on 01/15/14	3	83	83	0	12	0	0	4
[20] † Stenosteus sp.nov. Taxon name last Modified on 01/15/14	21	65	65	0	12	0	0	4
[21] † Gymnotrachelus Taxon name last Modified on 01/15/14	11	74	74	0	13	0	0	4
[22] † Rhinosteus Taxon name last Modified on 01/15/14	32	59	59	0	7	0	0	4
[23] † Pachyosteus Taxon name last Modified on 01/15/14	44	45	45	0	9	0	0	4
[24] † Heterostius Taxon name last Modified on 01/15/14	38	59	59	0	1	0	0	4
[25] † E. pustulosus Taxon name last Modified on 01/15/14	47	49	49	0	2	0	0	4
[26] † Protitanichthys Taxon name last Modified on 01/15/14	15	81	81	0	2	0	0	4
[27] † Panxiosteus Taxon name last Modified on 01/15/14	33	59	59	0	6	0	0	4
[28] † Janiosteus Taxon name last Modified on 01/15/14	72	24	24	0	2	0	0	4
[29] † Plourdosteus Taxon name last Modified on 01/15/14	23	67	67	0	8	0	0	4
[30] † E. calliaspis Taxon name last Modified on 01/15/14	3	89	88	0	7	0	0	4
[31] † Xiangshuiosteus Taxon name last Modified on 01/15/14	64	31	31	0	3	0	0	4
[32] † Kiangyousteus Taxon name last Modified on 01/15/14	78	19	19	0	1	0	0	4
[33] † Golshanichthys Taxon name last Modified on 01/15/14	57	39	39	0	2	0	0	4
[34] † Westralichthys Taxon name last Modified on 01/15/14	64	33	33	0	1	0	0	4
[35] † Dunkleosteus Taxon name last Modified on 01/15/14	4	88	88	0	6	0	0	4
[36] † D. raveri Taxon name last Modified on 01/15/14	66	29	29	0	3	0	0	4
[37] † D. amblyodoratus Taxon name last Modified on 01/15/14	91	7	7	0	0	0	0	4

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	319
Matrix downloads	7	Zhu Matrix 2013 (7 downloads);
Project downloads	309
Media downloads	3	M323749 (3 downloads);