Carnivores and Herbivores

All sauropodomorphs and ornithischians were herbivorous (perhaps excepting a few very basal forms.)
Among theropods, ornithomimosaurs and therizinosaurs were probably herbivorous or omnivorous.
This leaves 151 carnivorous genera (non-ornithimimosaur, non-therizinosaur theropods)
This is one third of the total 451 genera, which seems a high proportion.

All sauropodomorphs and ornithischians were herbivorous (perhaps excepting a few very basal forms.)