FIG. 4 in First evidence of an intercalar bone in the braincase of "palaeonisciform" actinopterygians, with a virtual reconstruction of a new braincase of Lawrenciella Poplin, 1984 from the Carboniferous of Oklahoma

FIG. 4. — Surface rendering generated from CT Scan slices of AMNH FF 20852 in anterior view: A, braincase (blue); B, braincase and associated bones (parasphenoid in red). Grey area, not perichondrally lined surface. Abbreviations: see Material and methods. Scale bar: 5 mm.