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Romaleodelphis

Mammalia - Cetacea

Taxonomy
Romaleodelphis was named by Sanchez-Posada et al. (2024). Its type is Romaleodelphis pollerspoecki.

It was assigned to Odontoceti by Sanchez-Posada et al. (2024).

Species
R. pollerspoecki (type species)

Synonymy list
YearName and author
2024Romaleodelphis Sanchez-Posada et al. p. 5

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

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. †Romaleodelphis Sanchez-Posada et al. 2024
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†Romaleodelphis pollerspoecki Sanchez-Posada et al. 2024
Diagnosis
ReferenceDiagnosis
C. Sanchez-Posada et al. 2024Romaleodelphis pollerspoecki differs from Chilcacetus in (a) the absence of a cavity between the nasals and presphenoid, (b) the presence of ankylosis for the symphysis of the mandibles, (c) the dentaries nearly completely fused, (d) the palatine only exposed laterally to the lateral lamina of the pterygoid, (e) a circle-shaped zygomatic process of the squamosal in lateral view, (f) an articular rim on the lateral surface of the periotic, and (g) a square-shaped pars cochlearis of the periotic in ventral view. It differs from Argyro- cetus bakersfieldensis in (a) the lack of a deep lateral groove along the rostrum and (b) the palatine only exposed laterally to the lateral lamina of the pterygoid. It differs from Argyrocetus joaquinensis in (a) a widening of the premaxillae at the rostrum base, (b) a dorsal opening of the mesorostral groove anterior to the rostrum base narrower than the premaxilla, (c) the palatine only exposed laterally to the lateral lamina of the pterygoid, and (d) a circle-shaped zygomatic process of the squamosal in lateral view. It differs from Macrodelphinus in (a) a widening of the premaxillae at the rostrum base and (b) the palatine only exposed laterally to the lateral lamina of the pterygoid. It differs from Argyrocetus patagonicus in (a) a widening premaxil- lae at the rostrum base, (b) a dorsal opening of the mesorostral groove anterior to the rostrum base narrower than the premax- illa, (c) the palatine only exposed laterally to the lateral lamina of the pterygoid, and (d) a circle-shaped zygomatic process of the squamosal in lateral view.