In the same journal issue, Gong and his team submitted a reassessment of the 2010 study, casting doubt on their findings. They admitted that grooved teeth were common among theropods (though they suggested they were really only prevalent among feathered maniraptorans), and hypothesized that venom may have been a primitive trait for all archosaurs if not all reptiles, which was retained in certain lineages. They also disputed the claim that the teeth were significantly out of their sockets in the holotype specimen of "Sinornithosaurus", though they admitted that they were not in a completely natural position. Gong's reassessment also claimed that certain undescribed specimens had fully articulated teeth showing a similar length. However, these grooved teeth are not direct evidence of venom, as non-venomous species of animals (such as baboons) have similarly grooved teeth.