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Masracetus

Mammalia - Artiodactyla - Basilosauridae

Synonymy list
YearName and author
2007Masracetus Gingerich p. 375
2011Masracetus Martinez-Cáceres and Muizon
2011Masracetus Schouten p. 18
2013Masracetus Abu El-kheir et al. p. 462
2013Masracetus Uhen p. 4 figs. Figure 9
2015Masracetus Gao and Ni p. 156 figs. Table 1
2016Masracetus Marx et al. p. 101
2017Masracetus Berta p. 159
2017Masracetus Martínez-Cáceres et al. p. 11
2018Masracetus Uhen

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

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
P. D. Gingerich 2007Masracetus markgrafi is distinguished from other archaeocetes by the size and shape of its lumbar vertebrae. These are large, but relatively short compared to their width and height. Lumbar centra are nearly the diameter (width and height) of lumbar centra of Basilosaurus isis, but centra of Masracetus are less than half the length of the latter. Masracetus markgrafi lumbar centra are similar to those of ‘Zeuglodon’ brachyspondylus Müller (1849: 26), but they are not as large. They also differ in being less wide relative to their length and height. Masracetus is larger than Cynthiacetus Uhen (2005), and it has a lower lumbar length-to-width ratio; Cynthiacetus is more like Dorudon than it is like Masracetus in both respects.