|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the infraclass Euryapsida by Olson (1947); it was reranked as the unranked clade Euryapsida by Rieppel (1989).
It was assigned to Eureptilia by Olson (1947); to Reptilia by Romer (1966) and Olson (1970); and to Neodiapsida by Rieppel (1989).
Is something missing? Join the Paleobiology Database and enter the data
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.