Millerosauria
Sign in to saveMillerosauria is a proposed extinct order of early reptiles that contains the families Millerettidae and Eunotosauridae. It was named in 1957 by Watson and represents a group of reptiles that were thought to be ancestral to Eosuchia (a now-defunct clade roughly corresponding to the non-saurian Neodiapsida) and modern reptiles. Many cladistic studies have interpreted members of the Millerosauria as an early-diverging group of 'parareptiles', but some phylogenetic analyses have demonstrated that 'Parareptilia' represents a group of unrelated early reptiles and is therefore polyphyletic. In 2025,
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Parareptilia
- Image
- Milleretta BW.jpg
Show 4 more facts
- taxon name
- Millerosauria
- taxon rank
- order
- start time
- 265800000-
- end time
- 251000000-
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Millerosauria is a proposed extinct order of early reptiles that contains the families Millerettidae and Eunotosauridae. It was named in 1957 by Watson and represents a group of reptiles that were thought to be ancestral to Eosuchia (a now-defunct clade roughly corresponding to the non-saurian Neodiapsida) and modern reptiles. Many cladistic studies have interpreted members of the Millerosauria as an early-diverging group of 'parareptiles', but some phylogenetic analyses have demonstrated that 'Parareptilia' represents a group of unrelated early reptiles and is therefore polyphyletic. In 2025, Jenkins et al. recovered the subgroup Millerettidae close to Neodiapsida as the earliest-diverging group in the clade Parapleurota.
Eunotosaurus has been recovered as a stem-turtle in some cladistic studies.
Excerpted from Wikipedia’s “Millerosauria” article, available under the CC BY-SA 4.0 licence.