FIG. 45 in Model-based analysis of postcranial osteology of marsupials from the Palaeocene of Itaboraí (Brazil) and the phylogenetics and biogeography of Metatheria

FIG. 45. — Radii of Rhyncholestes (E, F) and Monodelphis (G, H) compared to the IMG specimen (A-D); A, anterior view of complete radius; B, E, G, proximal views of proximal radius; C, F, H, anterior views of proximal radius; D, posterior view of proximal radius. Note the elliptical outline of the head in both the IMG specimen (B) and the caenolestid (E), compared to the rounded head of the terrestrial didelphid (G). Scale bars: 2 mm.