Found 2 items, similar to archeopteryx.
English → English (WordNet) Definition: archeopteryx archeopteryx n : extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds [syn: archaeopteryx, Archaeopteryx lithographica]
English → English (gcide) Definition: archeopteryx archeopteryx \archeopteryx\ n. 1. an extinct primitive toothed bird (Archaeopteryx lithographica ) of the Upper Jurassic having a long feathered tail and hollow bones; usually considered the most primitive of all known birds. Same as archaeopteryx. Syn: archaeopteryx. [WordNet 1.5]