|Basic info||Taxonomic history||Classification||Included Taxa|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the order Proterosuchia by Roxo (1937); it was reranked as the superfamily Proterosuchia by Kuhn (1964); it was synonymized subjectively with Proterosuchoidea by Kuhn (1966); it was corrected as Proterosuchida by Kuhn (1971).
It was assigned to Prodiapsida by Roxo (1937); to Pseudosuchia by Kuhn (1964); to Archosauria by Cooper (1981); and to Thecodontia by Charig (1967), Kuhn (1971), Cruickshank (1972), Charig and Sues (1976), Camp and Banks (1978), Thulborn (1979) and Carroll (1988).
|Year||Name and author|
|1911||Pelycosimia Huene p. 47|
|1922||Pelycosimia Huene p. 22|
|1937||Pelycosimia Roxo p. 44|
|1937||Proterosuchia Roxo p. 44|
|1964||Proterosuchia Kuhn p. 320|
|1967||Proterosuchia Charig p. 708|
|1971||Proterosuchida Kuhn p. 12|
|1972||Proterosuchia Cruickshank p. 116|
|1976||Proterosuchia Charig and Sues p. 11|
|1978||Proterosuchia Camp and Banks p. 149|
|1979||Proterosuchia Thulborn p. 332|
|1981||Proterosuchia Cooper p. 694|
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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.