Archaeopteryx

Archaeopteryx (from Ancient Greek  archaios meaning 'ancient' and pteryx meaning 'feather' or 'wing'; pronounced "ar-kee-OP-ter-iks" ) is the earliest and most primitive bird known. It lived in the late Jurassic Period around 155–150 million years ago in what is now southern Germany. In German, Archaeopteryx is also known as the Urvogel, a word meaning "original bird" or "first bird". Although the name originated in Germany, it is also used in English-speaking countries.
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Noun
1. extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds
(synonym) archeopteryx, Archaeopteryx lithographica
(hypernym) bird
(member-holonym) genus Archaeopteryx, genus Archeopteryx

(n.)
A fossil bird, of the Jurassic period, remarkable for having a long tapering tail of many vertebrae with feathers along each side, and jaws armed with teeth, with other reptilian characteristics.
  

archaeopteryx /,ɑ:ki'ɔptəriks/
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