Craniodental Morphology And Phylogeny Of Marsupials Author Beck, Robin M. D. School of Science, Engineering and Environment University of Salford, U. K. & School of Biological, Earth & Environmental Sciences University of New South Wales, Australia & Division of Vertebrate Zoology (Mammalogy) American Museum of Natural History Author Voss, Robert S. Division of Vertebrate Zoology (Mammalogy) American Museum of Natural History Author Jansa, Sharon A. Bell Museum and Department of Ecology, Evolution, and Behavior University of Minnesota text Bulletin of the American Museum of Natural History 2022 2022-06-28 2022 457 1 353 https://bioone.org/journals/bulletin-of-the-american-museum-of-natural-history/volume-457/issue-1/0003-0090.457.1.1/Craniodental-Morphology-and-Phylogeny-of-Marsupials/10.1206/0003-0090.457.1.1.full journal article 10.1206/0003-0090.457.1.1 0003-0090 6971356 † Neohelos SPECIES SCORED: † Neohelos stirtoni . GEOLOGICAL PROVENANCE OF SCORED SPECIMENS : Bullock Creek Local Fauna, Camfield Beds, Northern Territory , Australia . AGE OF SCORED SPECIMENS: the Bullock Creek Local Fauna is interpreted to be middle Miocene based on biostratigraphy (see † Mutpuracinus above). ASSIGNED AGE RANGE : 15.970 –11.630 Mya. REMARKS: The diprotodontid † Neohelos stirtoni is represented by multiple well-preserved individuals, including juveniles, from the Bullock Creek Local Fauna (Murray et al., 2000a, 200b). Black (2008) and Black et al. (2013) reported the presence of † N. stirtoni in a number of Riversleigh Fanal Zone C sites, but this material is considerably less complete, and only Bullock Creek specimens have been used for scoring purposes here. † Neohelos is usually considered to be a member of the diprotodontid subfamily †Zygomaturinae (e.g., Stirton et al., 1967b; Black and Mackness, 1999; Murray et al., 2000a, 2000b; Black et al., 2013). However, the traditional subdivision of † Diprotodontidae into †Zygomaturinae and †Diprotodontinae is primarily based on features of P3 morphology that now appear to be more variable than previously suspected (Murray et al., 2000b; Price, 2008; Black and Hand, 2010; Price and Sobbe, 2011; Black et al., 2013).