A morphological analysis of marsupial mammal higher-level phylogenetic relationships

  title={A morphological analysis of marsupial mammal higher-level phylogenetic relationships},
  author={In{\'e}s. Horovitz and Marcelo R. S{\'a}nchez-Villagra},

Phylogenetic Relationships and Classification of Didelphid Marsupials, an Extant Radiation of New World Metatherian Mammals

A decade of morphological and molecular research on the phylogenetic relationships of didelphid marsupials (opossums) is summarized, with a completely resolved ingroup phylogeny with high support statistics at most nodes.

First phylogenetic analysis of the tribe Phyllotini (Rodentia: Sigmodontinae) combining morphological and molecular data

This is the first combined phylogenetic analysis (morphological and molecular) of phyllotines, which includes the widest taxon and character sampling to date, and retrieved Phyllotini as a monophyletic clade with a composition that matches that obtained in most other recent analyses.

A comprehensive morphological analysis of talpid moles (Mammalia) phylogenetic relationships

It is most parsimonious to infer one migration from Eurasia to North America and two back‐migrations to Eurasia, and it is ambiguous if Talpini and Scalopini evolved their full fossorial habits independently or not.

Morphological evidence supports Dryolestoid affinities for the living Australian marsupial mole Notoryctes

Notoryctes constitutes a “living-fossil” from the supposedly extinct dryolestoid radiation, extending the biochron of the group more than 20 million years to the present day.

Mammals from ‘down under’: a multi-gene species-level phylogeny of marsupial mammals (Mammalia, Metatheria)

The first Methaterian species-level phylogeny to include 80% of the extant marsupial species and five nuclear and five mitochondrial markers obtained from Genbank and a recently published retroposon matrix is presented, offering a well resolved and detailed tool for comparative analyses.

First combined cladistic analysis of marsupial mammal interrelationships.

A Phylogeny and Timescale for Marsupial Evolution Based on Sequences for Five Nuclear Genes

The authors' UBBL estimates of the marsupial fossil record indicate that the South American record is approximately as complete as the Australasian record, and all methods provide strong support for the monophyly of Australidelphia.

A Dated Phylogeny of Marsupials Using a Molecular Supermatrix and Multiple Fossil Constraints

An analysis of “unrepresented basal branch lengths” suggests that the fossil record is particularly poor for didelphids and most groups within the Australasian radiation.

The origin and early evolution of metatherian mammals: the Cretaceous record

Metatherian diversification patterns suggest that they were not strongly affected by a Cretaceous Terrestrial Revolution, but they clearly underwent a severe extinction across the K-Pg boundary.



In quest for a phylogeny of Mesozoic mammals

A phylogeny of all major groups of Mesozoic mammals based on phylogenetic analyses of 46 taxa and 275 osteological and dental characters, using parsimony methods is proposed, suggesting that the “obtuse−angle symmetrodonts” are paraphyletic, and that they lack reliable and unambiguous synapomorphies.

Suprafamilial relationships within marsupialia: Resolution and discordance from multidisciplinary data

  • W. Luckett
  • Biology
    Journal of Mammalian Evolution
  • 2005
The ancestral morphotype for each marsupial family and each character was reconstructed, using the reconstructed eutherian and therian morphotypes for outgroup comparisons and ontogenetic data, stratigraphic position of fossils, and form-functional considerations were used, whenever feasible, to assess character state polarity of anatomical traits.

The phylogenetic relationships of argyrolagid marsupials

Eleven features support the monophyly of Paucituberculata, the following three unique among Marsupialia: small size of the paraconid, procumbent second lower incisor, and supraoccipital without distinct lambdoid crest resulting in globular form of braincase.


For some groups, notably Dasyuridae and a dasyurid clade inclusive of all modern subfamilies, the synapomorphic nature of some derived features appears to be robust, even where they also are present in some outgroup taxa.

Implications of Deltatheridium specimens for early marsupial history

The presence of specialized marsupial patterns of tooth replacement and cranial vascularization in Deltatheridium and the basal phylogenetic position of this taxon indicate that these features are characteristic of Metatheria as a whole.

The ear region of edentates and the phylogeny of the Tardigrada (Mammalia, Xenarthra)

A cladistic investigation of the phylogenetic relationships among 21 extinct and extant genera of sloths was performed on the basis of characteristics of the bony anatomy of the auditory region in order to evaluate specific hypotheses of relationship within the group.

DNA-hybridisation Studies of Marsupials and their Implications for Metatherian Classification

Calibration of the 102-taxon tree and dating of the major dichotomies suggest that no extant marsupial lineage originated before the latest Cretaceous, and that all of them together with most South American and all Australasian fossils should be recognised as a monophyletic group contrasting with a largely Laurasian (if possibly paraphyletic) taxon.

The origin of the dog-like borhyaenoid marsupials of South America

Comparison of the skulls of Mayulestes, Andinodelphys and Pucadelphys, from the early Palaeocene epoch of Bolivia are the oldest known for American marsupials and basicranial anatomy suggests that dog-like marsupial are closely related to an early didelphimorphian radiation in South America, rather than to Asiatic, North American, North America, or Australian lineages.

Phylogenetic studies of marsupials based on phosphoglycerate kinase DNA sequences.

  • D. Colgan
  • Biology
    Molecular phylogenetics and evolution
  • 1999
Phosphoglycerate kinase sequences were obtained for 313 aligned bases of 41 individuals from 39 marsupial species and the relationships suggested by these data show a high level of congruence with morphologically defined orders and families.

A Morphological Basis for Assessing the Phylogeny of the “Tenrecoidea” (Mammalia, Lipotyphla)

A phylogenetic analysis of 35 mammalian taxa focusing on the lipotyphlan family Tenrecidae, based on 193 morphological character states across 71 characters, is undertaken to test several hypotheses