- Archaeornithes
- nounprimitive reptile-like fossil birds of the Jurassic or early Cretaceous• Syn: ↑subclass Archaeornithes• Hypernyms: ↑class• Member Holonyms: ↑Aves, ↑class Aves• Member Meronyms: ↑genus Archaeopteryx, ↑genus Archeopteryx, ↑genus Sinornis, ↑genus Ibero-mesornis, ↑genus Archaeornis
* * *
\\-ˈȯrnəˌthēz, -ˌȯrˈnī(ˌ)thēz\ noun pluralUsage: capitalized: a subclass of Aves comprising the earliest and most primitive of fossil birds, retaining distinctive reptilian characters, and including the two genera Archaeornis and Archaeopteryx* * *
Archaeornithes /är-ki-örˈni-thēz/plural nounA subclass of primitive reptile-like fossil birds, the Saururae, including the archaeopteryx and similar birdsORIGIN: ↑archaeo- and Gr ornithes, pl of ornīs, ornīthos bird
Useful english dictionary. 2012.