Figure 3 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus

Figure 3. Virtual endocasts of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in dorsal aspect. Abbreviations: c, cerebrum; cb, cerebellum; fl, floccular lobe; mcv, middle cerebral vein; ob, olfactory bulb; ol, optic lobe; os, occipital sinus; se, sagittal eminence.