[21] The Rift Valley Research Mission conducted a number of surveys that led to the findings of Acheulean tools and animal fossils, as well as the Bodo Cranium.

[26] The cranium includes the face, much of the frontal bone, parts of the midvault and the base anterior to the foramen magnum.

Cuts on the Bodo cranium show the earliest evidence of removal of flesh immediately after the death of an individual using a stone tool.

[23][27] The cut marks were located "laterally among the maxilla" causing speculation among researchers that the specific reason for de-fleshing was to remove the mandible.

Due to the large cranial capacity, there is a wider midvault which includes signs of parietal bossing as well as a high contour of the temporal squama.

It displays both primitive and derived features, such as a cranial capacity more similar to modern humans and a projecting supraorbital torus more like Homo erectus.

The increased encephalization seen in fossils like the Bodo cranium is thought to have been a driving force in the speciation of anatomically modern humans.

However, both exhibit important differences from Homo erectus in their anatomy, such as the contour of their parietals, the shape of their temporal bones, the cranial base, and the morphology of their nose and palate.

They classified all European H. heidelbergensis as H. neanderthalensis, and synonymised H. rhodesiensis with a new species they named "H. bodoensis" which includes all African specimens, and potentially some from the Levant and the Balkans which have no Neanderthal-derived traits (namely Ceprano, Mala Balanica, HaZore'a and Nadaouiyeh Aïn Askar).

[38] Their taxonomic recommendations were rejected by Stringer and others as they failed to explain how exactly their proposals would resolve anything, in addition to violating nomenclatural rules.