FIGURE 7 in Morphological variation in a conservative structure: the scapulocoracoids in Sympterygia acuta Garman, 1837 and Sympterygia bonapartii Müller & Henle, 1841 (Chondrichthyes: Rajidae)

FIGURE 7. Phylogenetic analysis of Sympterygia species from McEachran (1982). Scapulocoracoid characters are shown within boxes. [7] = scapulocoracoid rectangular and expanded between meso- and metacondyles; [8] = multiple postdorsal foramina or expanded fenestra; [14] = ratio of scapulocoracoid height to length <75%; [15] = postdorsal and postventral fenestrae ḵ3; [25] = ratio of scapulocoracoid height to length <55%; [26] = postdorsal and postventral fenestrae>5.