Opossum Skull, North American small animal skull (didelphimorphia) for sale measuring approximately 4 inches long by 2-1/4 inches wide. - Skull pathology caused by parasitic infection. Review all photos. This opossum skull is from a wild Georgia opossum and will have natural imperfections found on all wild animal skulls. Our opossum skulls have been cleaned and whitened, however some may have a golden color or will have patches of light yellow.