archaeornis
noun
ar·chae·or·nis
ˌärkēˈȯrnə̇s
1
capitalized : a genus of Upper Jurassic birds (subclass Archaeornithes) having a long feathered tail, showing reptilian characteristics in the absence of a bill, presence of teeth in the jaws, and on the wings three free digits with claws
2
plural -es : a bird or fossil of the genus Archaeornis
Word History
Etymology
New Latin, from archae- + -ornis
First Known Use
1927, in the meaning defined at sense 1