Figure 3 in Osteology and phylogenetic position of the diminutive 'microsaur' Odonterpeton triangulare from the Pennsylvanian of Linton, Ohio, and major features of recumbirostran phylogeny

Figure 3. Photographs and labelled drawings of the skull of the holotype of Odonterpeton triangulare. A, B, dorsal view (USNM PAL 4465). C, D, ventral view of the skull and the anterior end of the cervical region (USNM PAL 4467). See Material and Methods for anatomical abbreviations.