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Kouriogenys minor

Mammalia - Peramura - Peramuridae

Taxonomy
Spalacotherium minus was named by Owen (1871). Its type specimen is BMNH 47751, a mandible (a left dentary fragment preserving a portion of the distal dentary, alveoli for the p1–p3 and m3, roots of the p4 and crowns of the p5 and m1–m2), and it is a 3D body fossil. Its type locality is Mammal Bed, Durlston Bay (DB83), which is in a Berriasian marine horizon in the Lulworth Formation of the United Kingdom. It is the type species of Kouriogenys.

It was synonymized subjectively with Peramus tenuirostris by Simpson (1928); it was recombined as Kouriogenys minor by Davis (2012).

Synonymy list
YearName and author
1871Spalacotherium minus Owen p. 28 figs. Pl. 1, fig. 39
2012Kouriogenys minor Davis p. 795 figs. Figures 3F, 9

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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()
RankNameAuthor
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
orderPeramura()
familyPeramuridaeKretzoi 1946
genusKouriogenys
speciesminor()

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.

Kouriogenys minor Owen 1871
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Diagnosis
ReferenceDiagnosis
B. M. Davis 2012Differs from other peramurids in having a p4 shorter in mesiodistal length than p5 and a single-rooted p1; differs from Peramus in less development of cusps e and f on distal molars; differs from Peramuroides gen. nov. in larger size, trigonid angle on m1 of 90 degrees and m2 and m3 subequal in mesiodistal length; differs from Tendagurutherium in absence of evidence for a coronoid bone and shorter distance between m3 and the ascending ramus.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialuc
Diet: insectivoreuc
Created: 2005-09-06 19:53:51
Modified: 2005-09-07 19:44:02
Source: c = class, subp = subphylum, uc = unranked clade
References: Hendy et al. 2009, Hopson 1973, Luo et al. 2003, Carroll 1988

Age range: Middle Berriasian or 145.00000 to 140.20000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Berriasian145.0 - 140.2United Kingdom (England) Spalacotherium minus (type locality: 72142)