|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was considered a nomen vanum by Welles (1984); it was considered a nomen dubium by Nesbitt et al. (2007).
It was assigned to Sauria by Adams (1875); to Cryptodira by Huene (1902); to Anchisauridae by Lydekker (1889), Zittel (1890), Marsh (1895), Marsh (1896), Hay (1902) and Lambe (1905); to Thecodontosauridae by Romer (1966); to Theropoda by Steel (1970) and Galton and Cluver (1976); to Saurischia by Anderson and Cruickshank (1978); and to Archosauromorpha by Sues (2016).
|Year||Name and author|
|1875||Arctosaurus Adams p. 179|
|1889||Arctosaurus Lydekker p. 353|
|1890||Arctosaurus Zittel p. 731|
|1896||Arctosaurus Marsh p. 239|
|1902||Arctosaurus Hay p. 492|
|1905||Arctosaurus Lambe p. 48|
|1966||Arctosaurus Romer p. 370|
|1970||Arctosaurus Steel p. 44|
|1976||Arctosaurus Galton and Cluver p. 150|
|1978||Arctosaurus Anderson and Cruickshank p. 31|
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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.