[1] The bone bed was in the Poison Strip Member of the Cedar Mountain Formation, and contained the remains of the iguanodont Planicoxa, a theropod, and an adult and juvenile of a sauropod.

[2] In 2001, Virginia Tidwell, Kenneth Carpenter, and Susanne Meyer described the sauropod remains as a new genus and species, Venenosaurus dicrocei.

Additional specimens of Venenosaurus have been reported from Dalton Wells Quarry, in the Yellow Cat Member of the Cedar Mountain Formation, comprising the fragmentary remains of least three individuals.

[13] The vertebrae in the middle and toward the end of the tail were short, distinguishing it from titanosaurs like Andesaurus, Malawisaurus, Aeolosaurus, Alamosaurus, and Saltasaurus.

[15] Venenosaurus had unusual lateral fossae, which looked like deep depressions in the outside walls of the vertebral centra.

[16] Fossae that similarly resemble shallow depressions are known from Saltasaurus, Alamosaurus, Aeolosaurus, Gondwanatitan, and Malawisaurus.

[16] These taxa differ, however, in that their fossae are even shallower, lack the division into chambers, and do not extend as far into the vertebral columns as those of Venenosaurus.

[17] The possession of amphiplatyan caudal centra with anteriorly facing neural spines is a unique identifier of this species.