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Squalodon calvertensis

Mammalia - Cetacea - Squalodontidae

Taxonomy
Squalodon calvertensis was named by Kellogg (1923). Its type specimen is USNM 10484, a partial skeleton, and it is a 3D body fossil. Its type locality is Chesapeake Beach, south of, Zones 3-6, which is in a Burdigalian offshore siltstone in the Calvert Formation of Maryland.

Sister species lacking formal opinion data
S. grateloupii

Synonymy list
YearName and author
1923Squalodon calvertensis Kellogg p. 45 figs. Plates 1-14
1930Squalodon calvertensis Hay p. 581
1984Squalodon calvertensis Whitmore p. 230
1994Squalodon calvertensis Gottfried et al. p. 233
2003Squalodon calvertensis Dooley p. 19
2008Squalodon calvertensis Uhen et al. p. 583
2008Squalodon calvertensis Whitmore and Kaltenbach p. 183
2011Squalodon calvertensis Geisler et al. p. 5 figs. Table 1
2014Squalodon calvertensis Tanaka and Fordyce p. 27
2023Squalodon calvertensis Godfrey and Lambert p. 53

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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()
—Mammaliamorpha
—Mammaliaformes
classMammalia
RankNameAuthor
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
—Pelagiceti
—Neoceti
suborderOdontoceti
—Amblyoccipita
—Stegoceti
familySqualodontidae
genusSqualodon
speciescalvertensis

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.

†Squalodon calvertensis Kellogg 1923
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatitesubo
Form: roller-shapedo
Ontogeny: modification of partso
Environment: marine, freshwatersubo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: carnivoresubo
Reproduction: viviparoussubo
Created: 2005-03-06 14:21:39
Modified: 2005-09-22 15:42:08
Source: subo = suborder, o = order
Reference: Uhen 2004

Age range: base of the Aquitanian to the top of the Serravallian or 23.03000 to 11.62000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Aquitanian23.03 - 20.44USA (Virginia) Squalodon calvertensis (70517)
Aquitanian - Langhian23.03 - 13.82USA (North Carolina) Squalodon calvertensis (48887)
Aquitanian - Serravallian23.03 - 11.62USA (Maryland) Squalodon calvertensis (231816)
Burdigalian20.44 - 15.97USA (Maryland) Squalodon calvertensis (type locality: 45493 71810)
Burdigalian20.44 - 15.97USA (Delaware) Squalodon calvertensis (18579)
Langhian15.97 - 13.82USA (Virginia) Squalodon calvertensis (79793)
Serravallian13.82 - 11.62USA (Virginia) Squalodon calvertensis (71801)