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Mesoscalops irwini

Osteichthyes - Proscalopidae

Taxonomy
Mesoscalops irwini was named by Albright et al. (2026). Its type specimen is MMNS VP-8239, a tooth (left m2), and it is a 3D body fossil. Its type locality is Jones Branch Local Fauna, which is in an Arikareean terrestrial claystone in the Catahoula Formation of Mississippi.

Synonymy list
YearName and author
2026Mesoscalops irwini Albright III et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
RankNameAuthor
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Eulipotyphla
suborderSoricomorphaGregory 1910
infraorderSoricotaKalandadze and Rautian 1992
superfamilyTalpoideaFischer de Waldheim 1817
familyProscalopidae
genusMesoscalops
speciesirwini

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.

†Mesoscalops irwini Albright III et al. 2026
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: insectivoresubc
Reproduction: viviparoussubc
Created: 2005-09-06 20:43:42
Modified: 2005-09-06 22:44:32
Source: subc = subclass, c = class, subp = subphylum
References: Ji et al. 2002, Lillegraven 1979, Carroll 1988, Hendy et al. 2009

Age range: late Early Arikareean or 29.50000 to 18.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
late Early Arikareean29.5 - 18.5USA (Mississippi) Mesoscalops irwini (type locality: 277762)