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Callistosiren

Mammalia - Sirenia - Dugongidae

Species
C. boriquensis (type species)

Synonymy list
YearName and author
2015Callistosiren Velez-Juarbe and Domning p. 2 figs. Figs. 1-10
2017Callistosiren Berta p. 170

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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()
RankNameAuthor
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
AfrotheriaStanhope et al. 1998
Tethytheria
orderSirenia()
familyDugongidae
subfamilyDugonginae
genusCallistosiren

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. †Callistosiren Velez-Juarbe and Domning 2015
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Callistosiren boriquensis Velez-Juarbe and Domning 2015
Diagnosis
ReferenceDiagnosis
J. Velez-Juarbe and D. P. Domning 2015Dugongine of medium body size (2–3 m; Sarko et al., 2010); differs from other dugongines by displaying the fol- lowing unique combination of plesiomorphic and derived charac- ters: nasal process of premaxilla tapering but thickened (c. 6[1]), shared with Kutchisiren cylindrica, Rytiodus capgrandi, and Bharatisiren kachchhensis; supraorbital process of frontal dorso- ventrally thin (<2 cm) and well developed, with recurved, bluntly pointed posterolateral corner (c. 36[0]), shared with Bharatisiren kachchhensis and Dioplotherium sp. (ECOCHM 2491); ventral rim of orbit not overhanging the lateral surface of the jugal (c. 90[0]), shared with Corystosiren varguezi; pterygoid fossa tall [c. 102(1)], shared with Crenatosiren olseni, Rytiodus heali, and Bharatisiren spp.; and tusks large (longer than half the length of the premaxillary symphysis) (c. 140[2]), lozenge- or kite-shaped in cross-section (c. 141[2]), and with enamel confined to the medial side (c. 142[1]). Displays the following apomor- phies: lacrimals with thin (<5 mm), elongated (»20 mm) dorsal process that is wedged between the premaxilla and frontal, and osteosclerotic but minimally pachyostotic ribs and vertebrae.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinef
Locomotion: actively mobilec
Life habit: aquaticf
Diet: herbivoref
Reproduction: viviparousf
Created: 2005-06-08 10:11:09
Modified: 2005-06-08 12:11:09
Source: f = family, c = class, subp = subphylum
References: Carroll 1988, Nowak 1991, Hendy et al. 2009, Domning 1978

Age range: Chattian or 28.10000 to 23.03000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Chattian28.1 - 23.03USA (Puerto Rico) C. boriquensis (165748)