Project 1118: Y. Zhu, M. Zhu. 2013. A redescription of Kiangyousteus 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)

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: https://doi.org/10.1111/zoj.12089

Project DOI: 10.7934/P1118, http://dx.doi.org/10.7934/P1118
This project containsMatrices
  • 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: 2526
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: 254
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

    Authors' Institutions

    • Institute of Vertebrate Paleontology and Paleoanthropology, CAS



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    Taxonomic Overview for Matrix 'M2462' (37 Taxa)

    taxon unscored
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    scored
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    NPA
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    "-" cellscell images labels on
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    [1] † Dicksonosteus
    Last Modified in 01/15/14
    13828203003
    [2] † Holonema
    Last Modified in 01/15/14
    14817905003
    [3] † Buchanosteus
    Last Modified in 01/15/14
    34626103003
    [4] † Homosteus
    Last Modified in 01/15/14
    29646405003
    [5] † Coccosteus
    Last Modified in 01/15/14
    5918904003
    [6] † Harrytoombsia
    Last Modified in 01/15/14
    8858505003
    [7] † McNamaraspis
    Last Modified in 01/15/14
    5909003003
    [8] † Compagopiscis
    Last Modified in 01/15/14
    4909004003
    [9] † Incisoscutum ritchiei
    Last Modified in 01/15/14
    6878705003
    [10] † Incisoscutum sarahae
    Last Modified in 01/15/14
    6878705003
    [11] † Latocamurus
    Last Modified in 01/15/14
    12838303003
    [12] † Camuropicislaidlawi
    Last Modified in 01/15/14
    20767602003
    [13] † Rolfosteus
    Last Modified in 01/15/14
    12808006003
    [14] † Tubonasus
    Last Modified in 01/15/14
    24717103003
    [15] † Fallocosteus turneri
    Last Modified in 01/15/14
    14828202003
    [16] † Dinichthys
    Last Modified in 01/15/14
    86121200003
    [17] † Gorgonichthys
    Last Modified in 01/15/14
    31595908003
    [18] † Hadrosteus
    Last Modified in 01/15/14
    35605805003
    [19] † Heintzichthys
    Last Modified in 01/15/14
    28484012003
    [20] † Stenosteus sp.nov.
    Last Modified in 01/15/14
    206666012003
    [21] † Gymnotrachelus
    Last Modified in 01/15/14
    117474013003
    [22] † Rhinosteus
    Last Modified in 01/15/14
    31606007003
    [23] † Pachyosteus
    Last Modified in 01/15/14
    42474709003
    [24] † Heterostius
    Last Modified in 01/15/14
    36616101003
    [25] † E. pustulosus
    Last Modified in 01/15/14
    47494902003
    [26] † Protitanichthys
    Last Modified in 01/15/14
    14828202003
    [27] † Panxiosteus
    Last Modified in 01/15/14
    33595906003
    [28] † Janiosteus
    Last Modified in 01/15/14
    72242402003
    [29] † Plourdosteus
    Last Modified in 01/15/14
    22686808003
    [30] † E. calliaspis
    Last Modified in 01/15/14
    1919007003
    [31] † Xiangshuiosteus
    Last Modified in 01/15/14
    62333303003
    [32] † Kiangyousteus
    Last Modified in 01/15/14
    78191901003
    [33] † Golshanichthys
    Last Modified in 01/15/14
    57393902003
    [34] † Westralichthys
    Last Modified in 01/15/14
    62353501003
    [35] † Dunkleosteus
    Last Modified in 01/15/14
    3898906003
    [36] † D. raveri
    Last Modified in 01/15/14
    66292903003
    [37] † D. amblyodoratus
    Last Modified in 01/15/14
    917700003


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views28789
    Project overview3364
    Matrix views2359Matrix landing page (2086 views); Zhu Matrix 2013 (273 views);
    Media views4570Media search (3942 views); M323749 (628 views);
    Specimen list1989
    Bibliography1071
    Taxon list13847
    Documents list1589




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    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project186
    Matrix downloads3Zhu Matrix 2013 (3 downloads);
    Project downloads181
    Media downloads2M323749 (2 downloads);