Shrew jaw

Common name: Shrew jaw
Technical name: Dolinasorex glyphodon jaw
Dating: 900,000 years
Site: Levels TD3 to TD6, Gran Dolina, Atapuerca, Burgos, Spain.
Description: Red-toothed shrew, extinct, closely linked to Asian forms, and large in size as it weighed up to 60 grams. This mammal injected toxic saliva through a narrow channel in the lower incisors. The reddish colour of its teeth is due to iron oxide produced by the shrew itself.