Table 7. List of specimens/species previously considered as pre-Mesozoic saurians and their age and current taxonomic assignment.

Specimen/Taxon	Age	Occurrence	Reported taxonomic assignment	Revised taxonomic assignment
Aenigmastropheus parringtoni	middle–late Wuchiapingian, middle Late Permian	Tanzania	“Proterosuchia” (Charig & Sues [127] )	Archosauromorpha, ?Protorosauria
Archosaurus rossicus	Changhsingian, latest Permian	Russia	Proterosuchidae (Tatarinov [88] ; Nesbitt [59] )	Archosauriformes, Proterosuchidae
BP/1/4220	Late Permian–Early Triassic	South Africa	?Proterosuchus sp. (Cruickshank [90])	Reptiliomorpha
Buena Vista Fm specimens	Late Permian–Early Triassic	Uruguay	Synapsida (Piñeiro et al. [140])	Amniota
Eorasaurus olsoni	late Capitanian– Wuchiapingian, late Middle Permian–early Late Permian	Russia	Archosauromorpha, Protorosauria (Sennikov [89] )	Archosauromorpha, ?Archosauriformes
Lanthanolania ivakhnenkoi	late Wordian, middle Middle Permian	Russia	Lepidosauromorpha/sister-taxon of Sauria (Modesto & Reisz [15]); non-saurian Neodiapsida (Reisz et al. [75])	Non-saurian Neodiapsida
Lacertulus bipes	Late Permian–Early Triassic	South Africa	Lepidosauromorpha (Carroll & Thompson [80]); non-squamate Diapsida (Estes [86]; Evans [3])	Non-squamate Diapsida
Palaeagama vielhaueri	Late Permian–Early Triassic	South Africa	Lepidosauromorpha (Carroll [10]; Gauthier et al. [57]); non-saurian Neodiapsida (Müller [32])	Non-saurian Neodiapsida
Paliguana whitei	Early Triassic	South Africa	Lepidosauromorpha (Carroll [10], [93]; Evans [56])	Lepidosauromorpha
Protorosaurus speneri	middle Wuchiapingian, middle Late Permian	Germany and England	Archosauromorpha Protorosauria (Benton [52] ; Gottman-Quesada & Sander [21] )	Archosauromorpha, Protorosauria
Saurosternon bainii	Late Permian	South Africa	Lepidosauromorpha (Carroll [10]; Gauthier et al. [57]); non-saurian Neodiapsida (Müller [32])	Non-saurian Neodiapsida

Permian specimens/species currently supported as saurian are highlighted in bold font.