|Basic info||Taxonomic history||Classification||Included Taxa|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the superfamily Ophiacodontia by Kuhn (1946); it was reranked as the order Ophiacodontia by Ivakhnenko (2008).
It was assigned to Pelycosauria by Kuhn (1946); to Pelycosauria by Romer and Price (1940), Huene (1954), Lewis and Vaughn (1965), Kuhn (1966), Olson (1966) and Haubold (1971); and to Ophiacomorpha by Ivakhnenko (2008).
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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.