The Red Fox
-Red Fox skulls look a lot like miniature Coyote skulls
-Red Fox and Gray Fox skulls are fairly different and a Red Fox reference image should not be used in place of a Gray Fox reference image if possible
-The fox spine was likely bleached or left in the sun for a long time and is fragile as a result.
Image 1, front to back: Red Fox, Female Coyote, Male Coyote, Gray Wolf
Images 2-4, left to right: Red Fox, Female Coyote, Male Coyote, Gray Wolf