LIST OF THE RICHARDS SPUR (FORT SILL) TETRAPOD PALEOFAUNA
Stratigraphic chart of the lower Permian (partial)
Content updated April 24, 2006
THADEOSAURUS COLCANAPI
Eureptilia-Diapsida-Neodiapsida-Younginiformes
Neural spines of the anterior dorsal vertebrae of the same Thadeosaurus partial skeleton, compared with the anterior dorsal vertebrae of an Hovasaurus partial skeleton
Below: neural spines of anterior dorsal vertebrae of the same Thadeosaurus partial skeleton. Height of neural spine related with the distance between anterior and posterior zygapophyses.
Below: (to compare with Thadeosaurus) anterior dorsal vertebra of an Hovasaurus, height of neural spine related with the distance between anterior and posterior zygapophyses.
Below: the partial Hovasaurus skeleton to which the above vertebra belong. From Lower Sakamena Formation-Madagascar. Upper Permian
Abbreviations: h, humerus; sc, scapula;