In addition to these cranial differences, in 2019 Button and Zanno note that herbivorous dinosaurs followed two main distinct modes of feeding. One of these was processing food in the gut which is characterized by gracile skulls and relatively low bite forces, and the second was oral food processing, characterized by features associated with extensive processing such as the lower jaws or dentition. "Segnosaurus" was found to be in the former mode, whereas "Erlikosaurus" was more likely to fall in the second group, further supporting that these two therizinosaurids were separated by a well-defined niche differentiation.