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Masracetus

Mammalia - Cetacea - Basilosauridae

Synonymy list
YearName and author
2007Masracetus Gingerich p. 375
2011Masracetus Martinez-Cáceres and Muizon
2011Masracetus Schouten p. 18
2013Masracetus 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
2020Masracetus Zalmout et al. p. 128

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
RankNameAuthor
Mammaliamorpha
Mammaliaformes
classMammalia
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Whippomorpha
orderCetacea
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.

G. †Masracetus Gingerich 2007
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Masracetus markgrafi Gingerich 2007
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.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Form: roller-shapedo
Ontogeny: modification of partso
Environment: marineo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: carnivoreo
Reproduction: viviparouso
Created: 2005-03-06 14:19:05
Modified: 2017-04-17 10:41:18
Source: o = order
Reference: Uhen 2004

Age range: Priabonian or 38.00000 to 33.90000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Priabonian38.0 - 33.9Egypt (Fayum) Cynthiacetus maxwelli (13403) M. markgrafi (153755)
Priabonian38.0 - 33.9Egypt M. markgrafi (96953) M. sp. (96952) Zeuglodon isis (79679)
Priabonian38.0 - 33.9Jordan M. markgrafi (32899)