The phylogenetic placement of Westlothiana has varied from basal amniote (i.e. a primitive reptile) to a basal Lepospondyl, in analyses with the lepospondyls branching off from within Reptiliomorpha.
The actual phylogenetic position of Westlothiana is uncertain, reflecting both the fragmentary nature of the find and the uncertainty of "labyrinthodont" phylogeny in general.

The modern consensus on the classification of Westlothiana, as supported by analyses such as Clack (2002), Ruta et al. (
2003), and Ruta & Coates (2007) considers the genus to be the earliest diverging (most "basal" or "primitive") member of Lepospondyli.
Westlothiana's placement in Lepospondyli supports the hypothesis that lepospondyls are not very distant from amniotes.
However, modern lissamphibians are sometimes considered to be descended from lepospondyls.
Therefore, Westlothiana may actually be closer to modern amphibians than to amniotes, although still close to both.
The phylogenetic placement of Westlothiana has varied from basal amniote (i.e. a primitive reptile) to a basal Lepospondyl, in analyses with the lepospondyls branching off from within Reptiliomorpha. The actual phylogenetic position of Westlothiana is uncertain, reflecting both the fragmentary nature of the find and the uncertainty of "labyrinthodont" phylogeny in general.
The modern consensus on the classification of Westlothiana, as supported by analyses such as Clack (2002), Ruta et al. (2003), and Ruta & Coates (2007) considers the genus to be the earliest diverging (most "basal" or "primitive") member of Lepospondyli. Westlothiana's placement in Lepospondyli supports the hypothesis that lepospondyls are not very distant from amniotes. However, modern lissamphibians are sometimes considered to be descended from lepospondyls. Therefore, Westlothiana may actually be closer to modern amphibians than to amniotes, although still close to both.
Westlothiana