|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the order Mesosauri by Jaekel (1910); it was reranked as the order Mesosauria by Huene (1954) and Karl et al. (2007).
It was assigned to Rhynchocephalia by Osborn (1903); to Enaliosauria by Jaekel (1910); to Theromorphoidea by Huene (1954); to Ichthyopterygia by Haughton and Brink (1954); to Cotylosauria by Carroll (1969); to Anapsida by Carroll (1988); to Amniota by Gauthier et al. (1989); and to Proganosauromorpha by Karl et al. (2007).
|Year||Name and author|
|1887||Proganosauria Baur p. 103|
|1890||Proganosauria Zittel p. 592|
|1892||Mesosauria Seeley p. 604|
|1892||Proganosauria Seeley p. 604|
|1903||Mesosauria Osborn p. 276|
|1903||Proganosauria Osborn p. 276|
|1903||Proganosauria Stefano p. 54|
|1904||Proganosauria Osborn p. 109|
|1910||Mesosauri Jaekel p. 334|
|1937||Proganosauria Roxo p. 43|
|1946||Proganosauria Kuhn p. 58|
|1954||Mesosauria Haughton and Brink p. 3|
|1954||Mesosauria Huene p. 26|
|1969||Mesosauria Carroll p. 167|
|1989||Mesosauria Gauthier et al. p. 340|
|2007||Mesosauria Karl et al. p. 67|
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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.