Table 1 Ages of taxa in phylogenetic analysis

Youngina

252.6

[68]

Prolacerta

251.902

[78]

Petrolacosaurus

298.9

[66]

Nothosaurus

233.5

[53]

Keichousaurus

240.8

[51]

Araeoscelis

272.3

[67] (Early Permian)

Mesosuchus

247.2

[10]

Gephyrosaurus

190.8

[76]

Champsosaurus albertensis

68.3

[16]

Champsosaurus gigas

56

[19]

Champsosaurus norelli

56

This paper

Kosmodraco dakotensis

56

[20]

Kosmodraco magnicornis

56

This paper

Simoedosaurus lemoinei

56

[74]

Tchoiria klauseni

113

[50] (Aptian)

Ikechosaurus sunailinae

113

[6] (Aptian)

Ikechosaurus pijiagouensis

113

[52]

Monjurosuchus splendens

129.4

[59]

Monjurosuchus splendens

129.4

[59]

Hyphalosaurus lingyuanensis

123

[32]

Hyphalosaurus sp.

123

[32]

Shokawa ikoi

132.9

[25]

Cteniogenys antiquus

150

[80]

Lazarussuchus inexpectatus

23.03

[47]

Lazarussuchus dvoraki

20

[24]

Khurendukuhosaurus orlovi

113

[61]

Philydrosaurus proseilus

113

[29]

Philydrosaurus proseilus

113

[29]

Tchoiria namsari

113

[17]

Lazarussuchus sp.

56

[60]

Coeruleodraco jurassicus

157.3

[61]

Heishanosaurus pygmaeus

113

[14]