Taxa, museum specimen number, High Resolution X-ray Computed Tomography image slices used for skull images, spacing between image slices in image stack, Field of Reconstruction, and image slice pixel size.

Museum Abbreviations: AMNH, American Museum of Natural History, New York; FMNH, Field Museum of Natural History, Chicago; TMM, Texas Natural Science Centers, Vertebrate Paleontology, Austin; UCL GMZ, University College, London Grant Museum of Zoology; SO, University of California Los Angeles Museum; UCLA, University of California Los Angeles; UCMVZ, University of California Museum of Vertebrate Zoology, Berkeley; UMMZ, University of Michigan Museum of Zoology, Ann Arbor.