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Morohasaurus

Reptilia

Taxonomy
Morohasaurus was named by Ikeda et al. (2022). Its type is Morohasaurus kamitakiensis.

It was assigned to Monstersauria by Ikeda et al. (2022).

Species
M. kamitakiensis (type species)

Synonymy list
YearName and author
2022Morohasaurus Ikeda et al.

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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()
—Anguimorpha(Fürbringer 1900)
—Monstersauria
genusMorohasaurus

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. †Morohasaurus Ikeda et al. 2022
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†Morohasaurus kamitakiensis Ikeda et al. 2022
Diagnosis
ReferenceDiagnosis
T. Ikeda et al. 2022As for type and only species: An Early Cretaceous member of the Varanoidea, cf. Monstersauria, from the Sasayama Group, Hyogo, Japan, differing from other fossil and extant monstersaurs by a combination of the following character states: shallow dentary not deepening significantly posteriorly with a rounded anteroventral rim; curved anterior portion end of dentary toward the mandibular symphysis without medial inflection of the anterior tooth positions; sinuous posteroventral dentary rim with large upper U-shaped and small lower V-shaped notches; posteroventral corner of intramandibular septum with weakly pointed eminence projecting posteriorly robust crescentic tooth-bearing border; unicuspid, trenchant, curved teeth with distinct blade-like carinae on mesial and distal sides of the crown, but without venom grooves and serrations; expanded tooth base forming a wide, labially opening U in the horizontal section with a few striations on the base.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Carroll 1988, Hendy et al. 2009

Age range: Early/Lower Albian or 112.03000 to 109.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Early/Lower Albian112.03 - 109.0Japan (Hyogo) M. kamitakiensis (224255)