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Schizodelphis barnesi

Mammalia - Cetacea - Eurhinodelphinidae

Taxonomy
Rhabdosteus barnesi was named by Myrick (1979). Its type specimen is USNM 244403 and is a 3D body fossil. Its type locality is Church Point, east of, Zone 12-13, which is in a Langhian estuary/bay claystone in the Calvert Formation of Virginia.

It was recombined as Schizodelphis barnesi by Muizon (1988), Benoit et al. (2011), Godfrey and Lambert (2023).

Synonyms
Synonymy list
YearName and author
1979Rhabdosteus barnesi Myrick p. 94
1979Rhabdosteus hruschkai Myrick p. 113 figs. Plates 26-43
1988Schizodelphis barnesi Muizon p. 42
2011Schizodelphis barnesi Benoit et al. p. 324
2023Schizodelphis barnesi Godfrey and Lambert p. 104

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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
RankNameAuthor
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
—Pelagiceti
—Neoceti
suborderOdontoceti
familyEurhinodelphinidae()
genusSchizodelphis
speciesbarnesi()

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.

†Schizodelphis barnesi Myrick 1979
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Invalid names: Rhabdosteus hruschkai Myrick 1979 [synonym]
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 Burdigalian to the top of the Serravallian or 20.45000 to 11.63000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Burdigalian20.45 - 15.98USA (Maryland) Rhabdosteus hruschkai (57786) Schizodelphis barnesi (70593)
Langhian15.98 - 13.82USA (Maryland) Rhabdosteus hruschkai (45506 45509 48884)
Langhian15.98 - 13.82USA (Virginia) Rhabdosteus hruschkai (57784 type locality: 57785 57787)
Serravallian13.82 - 11.63USA (Virginia) Rhabdosteus barnesi (71800 71801)
Serravallian13.82 - 11.63USA (Maryland) Schizodelphis barnesi (70835)