Craniodental Morphology and Phylogeny of Marsupials
2022/06/28 by Robin M. D. Beck, Robert S. Voss, Sharon A. Jansa · 2 citations
Earth and Planetary Sciences · Biochemistry, Genetics and Molecular Biology · Environmental Science · #Evolution and Paleontology Studies #Genomics and Phylogenetic Studies #Wildlife Ecology and Conservation
paper · doi:10.1206/0003-0090.457.1.1
openalex publication_date 2022/06/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Abstract
The current literature on marsupial phylogenetics includes numerous studies based on analyses of morphological data with limited sampling of Recent and fossil taxa, and many studies based on analyses of molecular data with dense sampling of Recent taxa, but few studies have combined both data types. Another dichotomy in the marsupial phylogenetic literature is between studies focused on New World taxa and those focused on Sahulian taxa. To date, there has been no attempt to assess the phylogenetic relationships of the global marsupial fauna based on combined analyses of morphology and molecular sequences for a dense sampling of Recent and fossil taxa. For this report, we compiled morphological and molecular data from an unprecedented number of Recent and fossil marsupials. Our morphological data consist of 180 craniodental characters that we scored for 97 terminals representing every currently recognized Recent genus, 42 additional ingroup (crown-clade marsupial) terminals represented by well-preserved fossils, and 5 outgroups (nonmarsupial metatherians). Our molecular data comprise 24.5 kb of DNA sequences from whole-mitochondrial genomes and six nuclear loci (APOB, BRCA1, GHR, RAG1, RBP3 and VWF) for 97 marsupial terminals (the same Recent taxa scored for craniodental morphology) and several placental and monotreme outgroups. The results of separate and combined analyses of these data using a wide range of phylogenetic methods support many currently accepted hypotheses of ingroup (marsupial) relationships, but they also underscore the difficulty of placing fossils with key missing data (e.g., †Evolestes), and the unique difficulty of placing others that exhibit mosaics of plesiomorphic and autapomorphic traits (e.g., †Yalkaparidon). Unique contributions of our study are (1) critical discussions and illustrations of marsupial craniodental morphology including features never previously coded for phylogenetic analysis; (2) critical assessments of relative support for many suprageneric clades; (3) estimates of divergence times derived from tip-and-node dating based on uniquely taxon-dense analyses; and (4) a revised, higher-order classification of marsupials accompanied by lists of supporting craniodental synapomorphies. Far from the last word on these topics, this report lays the foundation for future research that may be enabled by the discovery of new fossil taxa, better-preserved material of previously described taxa, novel morphological characters (e.g., from the postcranium), and improved methods of phylogenetic analysis.
Citations
- The Rise of Australian Marsupials: A Synopsis of Biostratigraphic, Phylogenetic, Palaeoecologic and Palaeobiogeographic Understanding
- Taxonomy of Australian Mammals
- Vertebrate palaeontology of Australasia
- A new chronology for middle Eocene-early Miocene South American Land Mammal Ages
- Carnivorous dental adaptations in tribosphenic mammals and phylogenetic reconstruction
- The geologically oldest dasyurid, from the Miocene of Riversleigh, north‐west Queensland
- The phylogeny and evolution of Cretaceous–Palaeogene metatherians: cladistic analysis and description of new early Palaeocene specimens from the Nacimiento Formation, New Mexico
- The Phylogeny of Early Eureptiles: Comparing Parsimony and Bayesian Approaches in the Investigation of a Basal Fossil Clade
- Palaeobiology of Euowenia grata (Marsupialia: Diprotodontinae) and its Presence in Northern South Australia
- A new Pleistocene tree-kangaroo (Diprotodontia: Macropodidae) from the Nullarbor Plain of south-central Australia
- The Placental Mammal Ancestor and the Post–K-Pg Radiation of Placentals
- An arid-adapted middle Pleistocene vertebrate fauna from south-central Australia
- Gigantism of the Australian Diprotodon Owen 1838 (Marsupialia, Diprotodontoidea) through the Pleistocene
- Tracking Marsupial Evolution Using Archaic Genomic Retroposon Insertions
- Australia's Oldest Marsupial Fossils and their Biogeographical Implications
- The Great American Biotic Interchange: Dispersals, Tectonics, Climate, Sea Level and Holding Pens
- Tertiary mammals of Australia: a synoptic review
- Earliest known Australian Tertiary mammal fauna
- Estimating the weight of the Pleistocene marsupial lion, Thylacoleo carnifex (Thylacoleonidae:Marsupialia): implications for the ecomorphology of a marsupial super-predator and hypotheses of impoverishment of Australian marsupial carnivore faunas
- A new carnivorous marsupial from the Palaeocene of Bolivia and the problem of marsupial monophyly
- First combined cladistic analysis of marsupial mammal interrelationships
- The Miocene mammal Necrolestes demonstrates the survival of a Mesozoic nontherian lineage into the late Cenozoic of South America
- The Gondwanan and South American Episodes: Two Major and Unrelated Moments in the History of the South American Mammals
- A Jurassic eutherian mammal and divergence of marsupials and placentals
- An Australian land mammal age biochronological scheme
- A Dated Phylogeny of Marsupials Using a Molecular Supermatrix and Multiple Fossil Constraints
- A deltatheroidan mammal from the Upper Cretaceous Baynshiree Formation, eastern Mongolia
- An Early Cretaceous Tribosphenic Mammal and Metatherian Evolution
- Cranial Anatomy of the Earliest Marsupials and the Origin of Opossums
- New material of the Late Cretaceous deltatheroidan mammalSulestesfrom Uzbekistan and phylogenetic reassessment of the metatherian-eutherian dichotomy
- Mammals from the Allen Formation, Late Cretaceous, Argentina
- Taxonomy and palaeobiology of the largest-ever marsupial, Diprotodon Owen, 1838 (Diprotodontidae, Marsupialia)
- A Likelihood Approach to Estimating Phylogeny from Discrete Morphological Character Data
- Cranial anatomy of Oligo-Miocene koalas (Diprotodontia: Phascolarctidae): stages in the evolution of an extreme leaf-eating specialization
- A phylogeny of Diprotodontia (Marsupialia) based on sequences for five nuclear genes
- Phylogenetic relationships of dasyuromorphian marsupials revisited
- Impacts of the Cretaceous Terrestrial Revolution and KPg Extinction on Mammal Diversification
- New Tertiary koala (Marsupialia, Phascolarctidae) from Riversleigh, Australia, with a revision of phascolarctid phylogenetics, paleoecology, and paleobiodiversity
- CONCEPTS AND TESTS OF HOMOLOGY IN THE CLADISTIC PARADIGM
- Phylogenomic datasets provide both precision and accuracy in estimating the timescale of placental mammal phylogeny
- MrBayes 3.2: Efficient Bayesian Phylogenetic Inference and Model Choice Across a Large Model Space
- The size of the largest marsupial and why it matters
- The Phylogenetic Position of the Musky Rat-Kangaroo and the Evolution of Bipedal Hopping in Kangaroos (Macropodidae: Diprotodontia)
- TNT, a free program for phylogenetic analysis
- A Total-Evidence Approach to Dating with Fossils, Applied to the Early Radiation of the Hymenoptera
- Disentangling the Relationship of the Australian Marsupial Orders Using Retrotransposon and Evolutionary Network Analyses
- Phylogenetic relationships of living and recently extinct bandicoots based on nuclear and mitochondrial DNA sequences
- To replace or not to replace: the significance of reduced functional tooth replacement in marsupial and placental mammals
- Skull and tooth variation in the genus Perameles. Part I: anatomical features
- Convergence of Afrotherian and Laurasiatherian Ungulate-Like Mammals: First Morphological Evidence from the Paleocene of Morocco
- A late Paleocene probable metatherian (?deltatheroidan) survivor of the Cretaceous mass extinction
- A large carnivorous mammal from the Late Cretaceous and the North American origin of marsupials
- Weighted parsimony outperforms other methods of phylogenetic inference under models appropriate for morphology
- Skeleton of an unusual, cat-sized marsupial relative (Metatheria: Marsupialiformes) from the middle Eocene (Lutetian: 44-43 million years ago) of Turkey
- Deep time diversity of metatherian mammals: implications for evolutionary history and fossil-record quality
- Genome of the Tasmanian tiger provides insights into the evolution and demography of an extinct marsupial carnivore
- How many species of mammals are there?
- An Early Cretaceous eutherian and the placental–marsupial dichotomy
- Tip-dating and homoplasy: reconciling the shallow molecular divergences of modern gharials with their long fossil record
- Paleoceanographic changes across the Latest Danian Event in the South Atlantic Ocean and planktic foraminiferal response
- An emerging consensus in the evolution, phylogeny, and systematics of marsupials and their fossil relatives (Metatheria)
- Phylogenetic relationships of the cuscuses (Diprotodontia : Phalangeridae) of island Southeast Asia and Melanesia based on the mitochondrial ND2 gene
- Using ggtree to Visualize Data on Tree‐Like Structures
- A new family of diprotodontian marsupials from the latest Oligocene of Australia and the evolution of wombats, koalas, and their relatives (Vombatiformes)
- The Evolutionary History and Diversity of Australian Mammals
- Selecting and averaging relaxed clock models in Bayesian tip dating of Mesozoic birds
- Combined data analysis of fossil and living mammals: a Paleogene sister taxon of Placentalia and the antiquity of Marsupialia
- Caroli Linnaei...Systema naturae per regna tria naturae :secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis
- Two new species of the genus Gumardee (Marsupialia, Macropodiformes) reveal the repeated evolution of bilophodonty in kangaroos
- Cranial remains of a new species of balbarine kangaroo (Marsupialia: Macropodoidea) from the Oligo-Miocene freshwater limestone deposits of Riversleigh World Heritage Area, northern Australia
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