Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Romeosaurus

Reptilia - Mosasauridae

Synonymy list
YearName and author
2013Romeosaurus Palci et al.
2019Romeosaurus Driscoll et al.

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
RankNameAuthor
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
Squamata()
familyMosasauridae
subfamilyYaguarasaurinae
genusRomeosaurus

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. †Romeosaurus Palci et al. 2013
show all | hide all
Romeosaurus fumanensis Palci et al. 2013
Romeosaurus sorbinii Palci et al. 2013
Diagnosis
ReferenceDiagnosis
A. Palci et al. 2013Thirteen to 15 strongly recurved maxillary teeth with subcircular cross-sections and weakly developed anterior and posterolateral carinae; maxillary suture for premaxilla low and extending above three tooth positions; straight slanting suture between maxilla and prefrontal; maxillary contribution to external nares between third and eighth maxillary teeth; suture line between surangular and articular ‘V’-shaped in lateral view; short predental rostrum on dentary; suprastapedial process of quadrate bone has bifurcated tip; cervical vertebrae with large hypapophysis (i.e., diameter of hypapophysis is close to the diameter of the centrum). It differs from Russellosaurus, Yaguarasaurus, Tethysaurus, and Pannoniasaurus in: presence of distinct anterolateral lappet rising from the ventral condyle of the quadrate; suture between maxilla and premaxilla extends above three tooth positions (two in Russellosaurus, Yaguarasaurus, Tethysaurus, and Pannoniasaurus); prefrontal and postorbitofrontal contacted each other laterally. It differs from Russellosaurus, Tethysaurus, and Pannoniasaurus in: presence of a predental rostrum on the dentary. It differs from Russellosaurus and Tethysaurus in: the number of maxillary teeth (16 in Russellosaurus, 19–20 in Tethysaurus). It differs from Tethysaurus and Pannoniasaurus in: lack of thin anteromedial crest on shaft of quadrate; suprastapedial process of quadrate extends ventral to midpoint of quadrate shaft; in Tethysaurus and Pannoniasaurus, the height of the tympanic conch is only about half of the height of the quadrate, whereas in Romeosaurus the tympanic conch occupies almost the entire height of the quadrate.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Life habit: aquaticf
Diet: carnivoref
Vision: well-developedf
Reproduction: ovoviviparousf
Created: 2018-01-05 16:32:54
Modified: 2018-01-05 16:32:54
Source: f = family, c = class, subp = subphylum, uc = unranked clade
References: Gervais 1852, Carroll 1988, Hendy et al. 2009

Age range: base of the Middle Turonian to the top of the Early/Lower Santonian or 93.50000 to 83.50000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Turonian - Middle Turonian93.5 - 89.3Italy (Verona) R. sorbinii (148885)
Middle Turonian93.5 - 89.3Italy (Verona) R. fumanensis (144507)
Early/Lower Coniacian - Early/Lower Santonian89.3 - 83.5Italy (Verona) R. fumanensis (144508)