Odonotornith

Odontornithes refers to a group of extinct, toothed birds that lived during the Mesozoic Era. These birds are part of the broader study of paleontology, which examines ancient life through fossils. While modern birds are toothless, early avian species, including those within the Odontornithes, possessed teeth.1234

The fossil record reveals that birds evolved from reptilian ancestors, likely theropod dinosaurs. Discoveries, particularly from China and Mongolia, have provided remarkable insights into avian evolution during the Early Cretaceous period. Two main groups of early birds diversified during this time: the extinct Enantiornithines and Odontornithes, which represent an early offshoot leading to modern birds. Fossils like Archaeopteryx show a mix of reptilian and avian characteristics, suggesting an intermediate stage in bird evolution.34