Unraveling an ancient mystery
Picturing the world of the prehistoric is often likened to a jigsaw puzzle: one in which each new piece starts a whole new puzzle. Your pieces are scattered across all the museum stores in the world or weathering out of the ground. The quality is variable and some of the pieces are warped. In some cases we get lucky and find an immaculately preserved specimen, like the ones being uncovered in China, with evidence of soft tissue still preserved. In other cases, we must rely on osteological correlates in living animals to work out what’s going on.
Palaeontologist Mark Witton recently wrote a post about a group of predatory dinosaurs called abelisaurs. These animals have a rough, cornified texture to their skulls. Living animals with a comparable bone texture usually have hardened, reinforced skin. Hippopotamus faces regularly endure blows from rival hippo teeth and, while scarring occurs, lasting damage is usually avoided. Some theropod dinosaurs* show bite scars on their faces which suggest that something similar was happening with these too. Hardened, armoured skin would be very useful here. However…





