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Maastrichtidelphys meurismeti

Mammalia

Taxonomy
Maastrichtidelphys meurismeti was named by Martin et al. (2005). Its type specimen is NHMM2002 063, a tooth (Right M2), and it is a 3D body fossil. Its type locality is ENCI-Maastricht B.V. quarry, Valkenburg Member, which is in a Maastrichtian coastal horizon in the Maastricht Formation of Belgium. It is the type species of Maastrichtidelphys.

Synonymy list
YearName and author
2005Maastrichtidelphys meurismeti Martin et al. p. 497

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Eugnathostomata
—Teleostomi(Bonaparte 1836)
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
RankNameAuthor
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
—Marsupialia()
—Peradectidae(Crochet 1979)
genusMaastrichtidelphys
speciesmeurismeti

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.

†Maastrichtidelphys meurismeti Martin et al. 2005
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Diagnosis
ReferenceDiagnosis
J. E. Martin et al. 2005Smallest known didelphoid, characterized by labiolingually compressed stylar cusps, significant reduction of stylar cusp B, marginal position of stylar cusp C, stylar cusp C is the largest stylar cusp, reduction of the size of conules and absence or extreme reduction of internal “wings” on para- and metaconules, invasive V shaped centrocrista with the apex capped by an arcuate conule or ridge.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilep
Life habit: scansorialf
Diet: omnivoref
Reproduction: viviparoussubc
Created: 2011-04-28 22:06:26
Modified: 2011-04-28 07:06:26
Source: f = family, subc = subclass, c = class, subp = subphylum, p = phylum
References: Hopson 1973, Carroll 1988, Kiessling 2004, Lillegraven 1979, Clemens 1979, Horovitz et al. 2009

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Maastrichtian72.2 - 66.0Belgium Maastrichtidelphys meurismeti (type locality: 123181)