 The lacrimal bone is very small and has no distinguishing features, but contacts all of the nasal, prefrontal and frontal bones.The frontal is weakly convex in the middle and the anterior, but the posterior area of it is very flattened.Although the parietal bone is not preserved, the interdigitating suture between parietal and frontal is still present, as is the crest across the bone here in the medial part.