|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was recombined as Morosaurus becklesii by Dollo (1889) and Marsh (1889); it was synonymized subjectively with Morosaurus brevis by Woodward and Sherborn (1890), Lydekker (1893) and Hooley (1917); it was considered a nomen dubium by Upchurch et al. (2004), Mannion and Calvo (2011), D'Emic (2012) and Mannion et al. (2013); it was recombined as Haestasaurus becklesii by Upchurch et al. (2015).
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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.