FIG. 12. Occipital views of Lestodelphys halli (A, UWZM 22422), Metachirus nudicaudatus (B, AMNH 267009), and Trichosurus vulpecula (C, AMNH 65557). Alternative states of characters 32, 90, 91, 93, and 95 (see main text for descriptions of these characters and character states) are illustrated as follows: Lestodelphys: 32(0), 90(0), 91(1), 93(1), 95(0); Metachirus: 32(1[but note that the modal condition for M. nudicaudatus is 0]), 90(0), 91(0), 93(2), 95(1); Trichosurus vulpecula: 32(-), 90(1), 91(0), 93(2), 95(0). Abbreviations: exo, exoccipital (yellow, coossified with basioccipital); fm, foramen magnum; mas, mastoid exposure of pars canalicularis of petrosal (blue, coossified with pars cochlearis); mf, mastoid fenestra; par, parietal (purple); pp, paroccipital process (of exoccipital); so, supraoccipital; sq, squamosal (orange). Specimens are not drawn to the same scale.

Published as part of Beck, Robin M.D., Voss, Robert S. & Jansa, Sharon A., 2022, Craniodental Morphology And Phylogeny Of Marsupials, pp. 1-353 in Bulletin of the American Museum of Natural History 2022 (457) on page 99, DOI: 10.1206/0003-0090.457.1.1, http://zenodo.org/record/6971356