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Xiphiacetus

Mammalia - Artiodactyla - Eurhinodelphinidae

Synonymy list
YearName and author
2005Xiphiacetus Lambert p. 212
2008Xiphiacetus Uhen et al. p. 573
2008Xiphiacetus Whitmore and Kaltenbach p. 197
2011Xiphiacetus Geisler et al. p. 5 figs. Table 1
2014Xiphiacetus Bianucci and Varola p. 118
2016Xiphiacetus Marx et al. p. 127
2017Xiphiacetus Berta p. 165
2017Xiphiacetus Godfrey et al. figs. Figure 6
2017Xiphiacetus Hastings and Dooley p. 83

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
Cetacea()
Pelagiceti
Neoceti
Odontoceti()
Synrhina
familyEurhinodelphinidae()
genusXiphiacetus

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
ReferenceDiagnosis
M. D. Uhen et al. 2008Xiphiacetus differs from Schizodelphis in: more robust skull with more progressiveelevation of the premaxillae towares the vertex; medial plate of the maxilla along the vertex less concave and less erected; thicker supraorbital process; rostrum generally relatively wider at its base. It differs from Ziphiodelphis in: narrower and ticker triangular part of the premaxilla medially to premaxillary foramen, lacking the more regular flatness and lateral slope seen in Ziphiodelphis; mesorostral groove widely open at that level; posterolaterally shorter plate of the maxilla along the vertex giving the posterodorsal outline of the skull a more rounded aspect in lateral view. It differs from Eurhinodelphis in: maxillary part of the rostrum relatively shorter; dorsomedian portion of the supraoccipital shield concave; less elevated and wider paroccipital process of the exoccipital with lower occipital condyles. It differs from Argyrocetus in: relatively wider face; more elevated vertex ith nasal longer than wide, at the same level or lower than the frontal; more erected supraoccipital shield. It differs from Macrodelphinus in: more elevated and more transversly compressed vertex withnasal as long as wide or longer than wide, and forntal as long as, or shorter than the nasal: supraoccipital shield closer to the vertical. It differs from Mycteriacetus in: relatively wider cranium; more elevated vertex with nasal at the same level or lower than the frontal, and frontal as long as, or shorter than the nasal; more erected supraoccipital shield (Lamert, 2005b).