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Xenacanthus

Chondrichthyes - Xenacanthiformes - Xenacanthidae

Taxonomy
Xenacanthus was named by Beyrich (1848). It is not extant.

It was synonymized subjectively with Pleuracanthus by Hay (1902).

It was assigned to Elasmobranchii by Irmis (2005); and to Xenacanthidae by Jordan (1963), Daly (1973), Zangerl (1981), Murry (1989), Hampe (2003), Heckert (2004) and Ginter et al. (2010).

Species
Species lacking formal opinion data

Synonymy list
YearName and author
1848Xenacanthus Beyrich
1963Xenacanthus Jordan p. 592
1973Xenacanthus Daly p. 564
1981Xenacanthus Zangerl p. 66
1989Xenacanthus Murry p. 250
2003Xenacanthus Hampe p. 229
2004Xenacanthus Heckert p. 72
2005Xenacanthus Irmis
2010Xenacanthus Ginter et al. p. 49

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
RankNameAuthor
superclassGnathostomata
classChondrichthyes
subclassElasmobranchiiBonaparte 1838
infraclassXenacanthimorpha
orderXenacanthiformesBerg 1955
familyXenacanthidaeFritsch 1889
genusXenacanthusBeyrich 1848

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Xenacanthus Beyrich 1848
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Xenacanthus indicus Jain 1980
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Created: 2009-07-21 07:25:48
Modified: 2009-07-21 09:25:48
Source: o = order, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Wagner 2023

Age range: base of the Kasimovian to the top of the Norian or 307.00000 to 208.50000 Ma

Collections (44 total)


Time interval Ma Country or state Original ID and collection number
Desmoinesian313.8 - 305.9USA (Oklahoma) X. sp. (223893)
Kasimovian307.0 - 303.7USA (Illinois) X. ossiani (224241)
Gzhelian - Sakmarian303.7 - 290.1USA (New Mexico) X. sp. (180989)
Asselian298.9 - 295.5Czech Republic X. sp. (218107)
Asselian - Sakmarian298.9 - 290.1Czech Republic X. sp. (51265)
Wolfcamp - Sakmarian296.4 - 290.1USA (Utah) X. texensis (13256)
Wolfcamp296.4 - 268.0USA (New Mexico) X. sp. (180106 180383 180384 180940 180974)
Artinskian290.1 - 279.3USA (Oklahoma) X. luederensis (220872) X. sp. (79402)
Artinskian290.1 - 279.3USA (Texas) X. sp. (22714)
Artinskian - Kungurian290.1 - 272.3USA (Texas) X. platypternus (85301) X. texensis, X. platypternus (85299 85300)
Artinskian - Roadian290.1 - 268.8USA (Texas) Pleuracanthus indet. (180992)
Leonard290.1 - 268.0USA (Oklahoma) X. sp. (79815 84941 85567 180990 180991)
Leonard290.1 - 268.0USA (Texas) X. platypternus (177018)
Kungurian279.3 - 272.3USA (Texas) X. platypternus (67735 85556) X. sp. (12976 27704 85551 85552 85553 85554 85555 177000 177003 177015)
Kungurian279.3 - 272.3USA (Oklahoma) X. sp. (67945)
Kungurian - Roadian279.3 - 268.8USA (Texas) X. sp. (79694)
Kazanian272.5 - 268.0Brazil (Rio Grande do Sul) X. sp. (232544)
Roadian - Wordian272.3 - 265.1USA (Oklahoma) X. sp. (27480 27573)
Carnian - Norian237.0 - 208.5India (Telangana) X. indicus (101863)
Norian228.0 - 208.5USA (New Mexico) X. sp. (55248)
Norian228.0 - 208.5USA (Texas) X. sp. (13266)