Huerfanodon torrejonius (Cope 1882; Eocene; AMNH 3224, Schoch 1986, USNM 15412) was traditionally considered a taeniodont, but here nests basal to the Vincelestes/ Thylacosmilus clade. Despite its late appearance, this taxon is similar to Vincelestes, which puts its genesis back to the Early Cretaceous. In dorsal view the skull is not pinched anterior to the jugals.

Cope ED 1882. Contributions to the history of the Vertebrata of the lower Eocene of Wyoming and New Mexico, made during 1881. Proceedings of the American Philosophical Society 20(111):139-197.

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