archeopteryx | ||
1. | [ noun ] (zoology) extinct primitive toothed bird of the Upper Jurassic having a long feathered tail and hollow bones; usually considered the most primitive of all birds | |
Synonyms: | Archaeopteryx_lithographica archaeopteryx | |
Related terms: | bird genus_Archaeopteryx | |
Similar spelling: |
archaeopteryx arch_over archeobacteria archaebacteria archaebacterium |