Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Xenacanthus

Chondrichthyes - Xenacanthiformes - Xenacanthidae

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

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

Species
Species lacking formal opinion data

View classification of included taxa

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

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
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.

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: Wagner 2017, Carroll 1988, Hendy et al. 2009

Age range: base of the Wolfcamp to the top of the Norian or 296.40000 to 208.50000 Ma

Collections (38 total)


Time interval Ma Country or state Original ID and collection number
Gzhelian - Sakmarian303.7 - 290.1USA (New Mexico) X. sp. (180989)
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 (Texas) X. sp. (22714)
Artinskian290.1 - 279.3USA (Oklahoma) X. sp. (79402)
Artinskian - Kungurian290.1 - 272.3USA (Texas) X. platypternus (85301) X. texensis, X. platypternus (85299 85300)
Artinskian - Roadian290.1 - 268.8USA (Texas) X. sp. (180992)
Leonard290.1 - 268.0USA (Texas) X. platypternus (177018)
Leonard290.1 - 268.0USA (Oklahoma) X. sp. (79815 84941 85567 180990 180991)
Kungurian279.3 - 272.3USA (Oklahoma) X. sp. (67945)
Kungurian279.3 - 272.3USA (Texas) X. platypternus (85556) X. sp. (12976 27704 85551 85552 85553 85554 85555 177000 177003 177015)
Kungurian - Roadian279.3 - 268.8USA (Texas) X. sp. (79694)
Roadian - Wordian272.3 - 265.1USA (Oklahoma) X. sp. (27480 27573)
Carnian - Norian237.0 - 208.5India (Andhra Pradesh) X. indicus (101863)
Norian228.0 - 208.5USA (New Mexico) X. sp. (55248)
Norian228.0 - 208.5USA (Texas) X. sp. (13266)