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Xenoposeidon

Osteichthyes

Taxonomy
Xenoposeidon was named by Taylor and Naish (2007). Its type is Xenoposeidon proneneukos.

It was considered a nomen dubium by D'Emic (2012), Mannion et al. (2013).

It was assigned to Neosauropoda by Taylor and Naish (2007); to Rebbachisauridae by Taylor (2018); and to Rebbachisauridae by Mannion and Moore (2025).

Species
X. proneneukos (type species)

Synonymy list
YearName and author
2007Xenoposeidon Taylor and Naish p. 1549
2018Xenoposeidon Taylor
2025Xenoposeidon Mannion and Moore

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Sauropodomorpha(Huene 1932)
—Massopoda
—Sauropodiformes
—Sauropoda()
—Gravisauria
—Eusauropoda
—Neosauropoda
—Diplodocoidea()
—Diplodocimorpha
—Rebbachisauridae()
genusXenoposeidon

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. †Xenoposeidon Taylor and Naish 2007
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†Xenoposeidon proneneukos Taylor and Naish 2007
Diagnosis
No diagnoses are available