First Fossil of a Bird Found to Have Teeth Adapted to their Food
This is the first bird fossil that have been found with teeth which has been adapted to their diet. From studying the teeth, they have found that they could break through 'prey with hard exoskeletons'. The shape of their teeth compared to previous birds discovered show great diversity that we have no yet seen.
The bird population was extremely uneven, weighing more towards the enantiornithines, which were birds that showed minimal loss of teeth. Instead their teeth were specialising forming ridges and egdes. It is still unknown why these species died out. Along side them were others of the birds we have today where they have adapted to living without the need for teeth.