[1] The holotype of Taurovenator (MPCA-Pv 802), a right postorbital, was discovered in the lower[2] Huincul Formation on the Violante Farm, southeast of the Ezequiel Ramos-Mexía Lake, Río Negro Province, Argentina, by Matías Motta in 2005.

[2] The holotype showed that part of the postorbital bone was strongly rugose and projected out like a horn, markedly different from the orbital bosses of other carcharodontosaurids.

Both Motta et al., 2016 and Rolando et al., 2024 consider this a unique trait,[1][2] but its sister taxon Meraxes too has a postorbital that was described as laterally projecting out like a horn.

The authors describing this morphology termed this unusual structure a "cervical complex", and likened them to overlapping roof tiles.

The nearly completely preserved arms were reduced to a greater degree than even in other carcharodontosaurids, being proportionately smaller than that of taxa such as Meraxes, particularly where the forearm is concerned.

[2] Motta et al. (2016) suggested that Taurovenator occupied a derived position within Carcharodontosauridae, comparing it to Giganotosaurus, Carcharodontosaurus and Mapusaurus in particular.

In order to test the systematics of Taurovenator with the information supplemented by the new specimen, the study used the phylogenetic dataset used in the description of Meraxes, with some additional data.

[2] Other theropods include the paravian Overoraptor, the elaphrosaurine Huinculsaurus, the abelisaurs Skorpiovenator, Tralkasaurus, and Ilokelesia, and the megaraptoran Aoniraptor.