-
means that
Thadeosaurus was
probably a good runner.
Below is a
cladogram from
Reisz et al. (2011)
showing the
phylogenetic position of
Thadeosaurus among other...
- (including Acerosodontosaurus, Hovasaurus, Kenyasaurus, Tangasaurus,
Thadeosaurus and Youngina) were
historically suggested to be lepidosauromorphs, but...
- †Palacrodon †Palaeagama †Saurosternon †Sphodrosaurus †Younginidae
Galesphyrus Thadeosaurus Youngina †Tangasauridae Acerosodontosaurus?
Hovasaurus Tangasaurus †Weigeltisauridae...
- †Tangasauridae (Hovasaurus,
Thadeosaurus, Acerosodontosaurus) †Younginidae (Youngina+unnamed species) Sauria...
-
procolophonid parareptile Barasaurus, the
neodiapsids Hovasaurus, Claudiosaurus,
Thadeosaurus, and Acerosodontosaurus,
fragments of
rhinesuchid temnospondyls, an indeterminate...
- †Palacrodon †Palaeagama †Saurosternon †Sphodrosaurus †Younginidae
Galesphyrus Thadeosaurus Youngina †Tangasauridae Acerosodontosaurus?
Hovasaurus Tangasaurus †Weigeltisauridae...
- †Palacrodon †Palaeagama †Saurosternon †Sphodrosaurus †Younginidae
Galesphyrus Thadeosaurus Youngina †Tangasauridae Acerosodontosaurus?
Hovasaurus Tangasaurus †Weigeltisauridae...
- Acerosodontosaurus, and more
distantly to
tangasaurids (Kenyasaurus, Hovasaurus,
Thadeosaurus, and Tangasaurus), but the
monophyly of
younginiforms has not been demonstrated...
- †Palacrodon †Palaeagama †Saurosternon †Sphodrosaurus †Younginidae
Galesphyrus Thadeosaurus Youngina †Tangasauridae Acerosodontosaurus?
Hovasaurus Tangasaurus †Weigeltisauridae...
- †Palacrodon †Palaeagama †Saurosternon †Sphodrosaurus †Younginidae
Galesphyrus Thadeosaurus Youngina †Tangasauridae Acerosodontosaurus?
Hovasaurus Tangasaurus †Weigeltisauridae...
