👉 Apeleutherus is a genus of extinct birds that lived during the Late Cretaceous period, approximately 76 million years ago. They were part of the family Rhacophocaecidae and were characterized by their large size (up to 1.5 meters long), sharp beak, and distinctive beak-like structure that allowed them to fly. Apeleutherus was a very early bird species, with many known fossils dating back over 40 million years