The uploaded file consists of a simple data table to support the associated article, "Testing for a facultative locomotor mode in the acquisition of archosaur bipedality". The table outlines the results of a literature survey of all taxa included in the two independent character matrices discussed in the article. The table records the most recent interpretation of locomotor mode for each taxon. The literature survey was conducted to determine whether each taxon was classified as an obligate quadruped (OQ), facultative biped (FB), or obligate biped (OB).