The preserved length of the femur is . A second species, Sarcosaurus andrewsi, was named by Friedrich von Huene in 1932, based on a tibia, BMNH R3542, described by Arthur Smith Woodward in 1908 and found near Wilmcote. Confusingly von Huene in the same publication named the very same fossil Magnosaurus woodwardi. Later he made a choice for S. andrewsi to be the valid name. Huene also discussed WARMS G667–690, a partial skeleton also from Wilmcote, both specimens are from the Blue Lias. In 1974 S. andrewsi was reclassified as Megalosaurus andrewsi by Michael Waldman, on the probably erroneous assumption it was a megalosaurid. A later study concluded the two species to be indistinguishable except for size, but other authors consider any identity to be unprovable as there are no comparable remains and conclude both species to lack autapomorphies and therefore to be nomina dubia. Von Huene in 1932 referred a partial skeleton from the collection of the Warwick Museum to S. woodi but the identity was unproven; in 1995 it was given the informal name "Liassaurus" but this has remained a nomen nudum. The specimen is likely one individual, located in the same stratiagraphic position as the holotypic specimen. Unfortunately, there are few available overlapping elements from the specimen and the holotype. Both specimens preserve a relatively complete femur: however, the features of both (an anteromedially directed head, a relatively long fourth trochanter and a trochanteric shelf) are plesiomorphic and thus do not indicate conspecifity or clade membership. It is noted, however, that there are no features which are present in one specimen but not the other. In 2020 WARMS G667–690 was given a comprehensive redescription, which proposed that all three specimens belonged to the same species, Sarcosaurus woodi. Phylogeny Andrews originally assigned Sarcosaurus to the Megalosauridae. The first to suggest a more basal position was Samuel Paul Welles who placed it in the Coelophysidae. Later analyses resulted in either a position in the Ceratosauria, or in the Coelophysoidea. Ezcurra (2012) found Sarcosaurus to be the most basal ceratosaur in a large unpublished analysis. In 2018, Andrea Cau in the large analysis of Saltriovenator found Sarcosaurus to be a dilophosaurid with good amount of support in the data. In 2020, Ezcurra et al. recovered Sarcosaurus as a close relative of Averostra due to the presence of shared characters including an anteroventrally oriented ventral margin of the preacetabular process in