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Basilosaurus

Mammalia - Cetacea - Basilosauridae

Synonyms
Synonymy list
YearName and author
1834Basilosaurus Harlan p. 403 figs. Plate XX
1839Zeuglodon Owen p. 28
1842Zeuglodon De Kay p. 123
1845Hydrarchos Koch
1845Hydrarchos harlani Koch
1845Hydrargos Koch
1845Hydrarchos harlani Koch p. 1
1849Hydrarchus Muller p. 3
1853Zeuglodon Bronn p. 763
1853Zeuglodon Pictet p. 376
1858Polyptychodon Emmons p. 219
1866Zeuglodon Haeckel figs. Plate VIII
1867Basilosaurus Cope p. 144
1871Basilosaurus Gill p. 125
1873Zeuglodon puschii Brandt p. 112
1874Zeuglodon Brandt p. III
1882Zugodon Scudder p. 357
1887Zeuglodon Lydekker p. 49
1890Zeuglodon Cope p. 602
1894Zeuglodon Zittel p. 167
1898Zeuglodon Trouessart p. 1009
1898Zeuglodon puschii Trouessart p. 1010
1902Basilosaurus Hay p. 586
1904Basilosaurus Palmer p. 134
1904Hydrarchos Palmer p. 334
1904Zeuglodon Palmer p. 715
1904Basilosaurus Trouessart p. 753
1904Basilosaurus puschi Trouessart p. 753
1906Alabamornis Abel pp. 450-458
1906Zeuglodon Andrews p. 236
1908Basilosaurus Stromer p. 148
1914Zeuglodon Abel p. 220
1919Zeuglodon Abel p. 751
1923Basilosaurus Miller p. 40
1925Zeuglodon Zittel p. 84
1928Basilosaurus Kellogg p. 32 figs. Table 1
1930Basilosaurus Hay p. 569
1936Basilosaurus Kellogg p. 14
1936Zeuglodon Slijper
1945Basilosaurus Simpson p. 100
1952Basilosaurus Sherman p. 99
1954Basilosaurus Moustafa p. 87
1970Basilosaurus Mchedlidze p. 50
1972Basilosaurus Halstead and Middleton
1981Basilosaurus Thurmond and Jones p. 193
1986Basilosaurus Hooker p. 342
1988Basilosaurus Carroll
1993Basilosaurus Benton p. 761
1997Basilosaurus Gingerich et al.
1997Basilosaurus McKenna and Bell p. 369
1998Basilosaurus Uhen p. 31
1999Basilosaurus Bergqvist et al. p. 31
2001Basilosaurus Thewissen et al. p. 351 figs. Table 1
2002Basilosaurus Sepkoski, Jr.
2003Basilosaurus Geisler and Sanders p. 27
2004Basilosaurus Uhen p. 12
2004Basilosaurus van Vliet p. 143
2006Basilosaurus Clementz et al. p. 359
2008Basilosaurus McLeod and Barnes p. 94
2008Basilosaurus Uhen p. 561
2009Basilosaurus Spaulding et al. p. 3
2009Basilosaurus Uhen p. 93
2010Basilosaurus Fitzgerald p. 370 figs. Table 1
2011Basilosaurus Martinez-Cáceres and Muizon p. 518
2011Basilosaurus Schouten p. 18
2012Basilosaurus Gingerich p. 313 figs. Figure 4
2012Basilosaurus puschi Kalmykov p. 179
2013Basilosaurus El-kheir et al. p. 465
2013Basilosaurus Uhen p. 5 figs. Figure 3
2014Basilosaurus Gingerich and Cappetta p. 128 figs. Figure 16
2015Basilosaurus Boessenecker and Fordyce figs. Table 1
2015Basilosaurus Gao and Ni p. 156 figs. Table 1
2017Basilosaurus Berta p. 159
2017Basilosaurus Martínez-Cáceres et al. p. 11
2018Basilosaurus Uhen
2019Basilosaurus Mahdy et al.

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

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 2008Basilosaurus is distinguished from other basilosaurids by its large body size and elongate posterior thoracic, lumbar, and anterior caudal vertebrae. Basilosaurus lacks the vertically oriented metapophyses seen in Basiloterus (Gingerich et al., 1997).
M. D. Uhen 2013Members of the genus Basilosaurus can be distinguished from all other basilosaurids by their large size (>15 m length) and the great elongation of the pos- terior thoracic, lumbar, and anterior caudal vertebral bodies (length around 2 times width or height). Vertebrae assigned to members of Basilotritus wardii and related taxa share a somewhat similar elongation in the trunk verte- brae, but not to the same degree as seen in Basilosaurus. In addition, the pedicles, neural arches, neural spines, and transverse processes of the trunk vertebrae of Basilotritus wardii and related taxa are also greatly elongated, while in Basilosaurus, they are not elongated to the same degree, and the number of thoracic vertebrae in Basilotritus wardii is 12, like that of Protocetidae and unlike other Basilosau- ridae. See Remarks section below.
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: base of the Bartonian to the top of the Late/Upper Eocene or 41.30000 to 33.90000 Ma

Collections (80 total)


Time interval Ma Country or state Original ID and collection number
Tertiary66.0 - 2.588Poland Zeuglodon puschii (77355)
Eocene56.0 - 33.9USA (Mississippi) B. cetoides (131913)
Bartonian41.3 - 38.0USA (Florida) B. sp. (49882)
Bartonian41.3 - 38.0Antarctica Zeuglodon sp. (77358)
Bartonian41.3 - 38.0Pakistan (Punjab) B. drazindai (11596)
Bartonian41.3 - 38.0Egypt Zeuglodon sp. (96950 97545)
Bartonian41.3 - 38.0United Kingdom (England) B. sp. (32915)
Bartonian - Priabonian41.3 - 33.9USA (Florida) B. sp. (81604)
Priabonian38.0 - 33.9USA (Arkansas) B. cetoides (16549 122718)
Priabonian38.0 - 33.9USA (Louisiana) B. cetoides (32925 75638)
Priabonian38.0 - 33.9Egypt (Fayum) B. cetoides (175726) B. isis (13103 13402 13403 83938) Zeuglodon sp. (74737 74738)
Priabonian38.0 - 33.9Western Sahara Basilosaurus indet. (206018) B. isis (159110 159112 159114 159115) B. sp. (96686 96688 206020)
Priabonian38.0 - 33.9Jordan B. isis (32899)
Priabonian38.0 - 33.9USA (South Carolina) B. sp. (32908 206945)
Priabonian38.0 - 33.9USA (Florida) B. brachyspondylus (57123) B. cetoides (57122) zeuglodont sp. (32916)
Priabonian38.0 - 33.9USA (Georgia) B. cetoides (132660 202045) B. sp. (138667)
Priabonian38.0 - 33.9USA (Alabama) B. cetoides (28983 28986 45638 76685 89613 131804 131832 204941) B. sp. (45637) Zeuglodon cetoides (86949) Zeuglodon sp. (84754 86948)
Priabonian38.0 - 33.9USA (Tennessee) B. cetoides (32902)
Priabonian38.0 - 33.9Ukraine (Kiev) B. sp. (183530)
Priabonian38.0 - 33.9USA (Mississippi) B. cetoides (32926 45627 45628 45629 45630 45631 45632 45633 45634 55689 55868 135787) Zeuglodon sp. (84058 132820 132822 132823 132824 132825)
Priabonian38.0 - 33.9Egypt B. cetoides (123919) B. isis (13102 79677 79678 79681 96952 137568 198761) Zeuglodon isis (49924 65974)
Late/Upper Eocene37.2 - 33.9Egypt Zeuglodon sp. (40516)