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Amphechinus major

Mammalia - Erinaceidae

Taxonomy
Amphechinus major was named by Ziegler et al. (2007). Its type specimen is NHMW 2005z0198/0001, a tooth (M1 sup. dext.), and it is not a trace fossil. Its type locality is DEL-B/12, Valley of Lakes, Central Mongolia, which is in an Oligocene terrestrial horizon in the Hsanda Gol Formation of Mongolia.

Sister species lacking formal opinion data

Synonymy list
YearName and author
2007Amphechinus major Ziegler et al. p. 104

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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()
RankNameAuthor
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Eulipotyphla
familyErinaceidaeFischer von Waldheim 1817
subfamilyErinaceinaeFischer de Waldheim 1817
tribeAmphechininiGureev 1979
genusAmphechinusAymard 1850
speciesmajor

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.

Amphechinus major Ziegler et al. 2007
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Diagnosis
ReferenceDiagnosis
R. Ziegler et al. 2007Medium-sized Amphechinus-species with well developed metaconules in most of the M1, and moderately developed metaconules in most of the M2. It is distinctly larger than A. minutissimus, and A. taatsiingolensis from the same region. It differs from A. microdus from the Early Miocene of Kazakhstan in the bigger size of m1, m3 and M2 and in the presence of metaconules on M1 and M2. It differs from A. bohlini from the Early Miocene of the Junggar Basin, China, in the longer p4, the smaller m1 and m2, in the bigger m3 and in the more anterior position of the mental foramen. All the other Amphechinus species from North America, Europe, Africa and Asia cannot be confused, because they are much bigger.