from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Rare spelling of archeopteryx.
from the GNU version of the Collaborative International Dictionary of English
- n. A fossil bird, of the Jurassic period, remarkable for having a long tapering tail of many vertebræ with feathers along each side, and jaws armed with teeth, with other reptilian characteristics.
from The Century Dictionary and Cyclopedia
- n. A genus of fossil reptilian Mesozoic birds discovered by Andreas Wagner, in 1861, in the lithographic slates of Solenhofen in Bavaria.
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