Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Microbiotheriidae

Mammalia - Microbiotheria - Microbiotheriidae

Synonyms
Synonymy list
YearName and author
1887Microbiotheridae Ameghino
1891Microbiotheridae Ameghino p. 22
1894Microbiotheridae Ameghino p. 103
1897Microbiotheriidae Ameghino p. 501
1909Clenialitidae Ameghino p. 204
1982Microbiotheriidae Marshall
1991Microbiotheriidae Nowak
1994Microbiotheriidae Springer et al. p. 86
1997Microbiotheriidae McKenna and Bell
1999Microbiotheriidae Goin et al.
2006Microbiotheriidae Goin et al.
2010Microbiotheriidae Goin et al.
2011Microbiotheriidae Oliveira and Goin
2012Microbiotheriidae Abello et al.
2013Microbiotheriidae Goin and Abello

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
RankNameAuthor
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes(Rowe 1988)
Trechnotheria
Cladotheria
Boreosphenida()
subclassTheria
subclassMetatheria()
Marsupialia()
AustralidelphiaSzalay 1982
superorderEometatheriaSimpson 1970
orderMicrobiotheriaAmeghino 1899
familyMicrobiotheriidae(Ameghino 1887)
familyMicrobiotheriidae(Ameghino 1887)

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.

Diagnosis
ReferenceDiagnosis
F. J. Goin et al. 1999Family Microbiotheriidae. The upper molars have a very reduced stylar shelf and cusps. The protocone is strong; the paracone and metacone are subequal in size and height. The preparacrista is very short and connected with the parastylar corner. The lower molars have a metaconid slightly displaced posteriorly, especially on ml-2. The anterior cingu- lum is vestigial or absent. The talonids are wide. The hypoconulid is small and not close to the entoconid but relatively separated from it.