Long Bone Histology of Sauropterygia from the Lower Muschelkalk of the Germanic Basin Provides Unexpected Implications for Phylogeny (original) (raw)
Figure 2
Drawing of Nothosaurus humerus morphotype IV and Cymatosaurus morphotype I.
A–D) Horizontally mirrored drawing of Nothosaurus humerus morphotype IV (right humerus IGWH-8). A) Dorsal view, B) postaxial view, C) ventral view, and D) preaxial view. E–H) Drawing of Cymatosaurus humerus morphotype I (left humerus IGWH-19). E) Dorsal view, F) postaxial view, G) ventral view, and H) preaxial view. Abbreviations in alphabetic order: ase = asymmetrically sharp edge which divides the preaxial proximal surface into two postaxially descending surfaces; ch = deep channel; ldi = latissimus dorsi insertion, no = distinct strangulated notch; pe = protruding edge; pri = prominent rhombic indentation. The deep channels are not easily visible in 2F but the arrows mark their position.