Fig. 4 in Phylogenetic Analyses Of Postcranial Skeletal Morphology In Didelphid Marsupials

Fig. 4. Philander opossum (AMNH 262415) and Marmosa mexicana (ROM 99608), last cervical vertebrae and first thoracic vertebra in lateral view. In Philander, the C7 spinous process is taller than the C6 process (ch. 20[0]), whereas in Marmosa mexicana the C6 and C7 spinous processes are similar in size (ch. 20[2]). Note the C6 spinous process resembling a protuberance in both species (ch. 17[2]). Abbreviation: r, rib. Scale bars: 5 mm.