Paleornithology is the scientific study of bird evolution and fossil birds. It is a mix of ornithology and paleontology. Paleornithology began with the discovery of Archaeopteryx. The reptilian relationship of birds and their ancestors, the theropod dinosaurs, are important aspects of paleornithological research. Other areas of interest to paleornithologists are the early sea-birds Ichthyornis , Hesperornis, and others. Ornithology (from the Greek ornis = bird and logos = word/science) is the branch of zoology concerned with the scientific study of birds. ... Paleontology, palaeontology or palÃ¦ontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. ... Binomial name Archaeopteryx lithographica Meyer, 1861 Synonyms see text Archaeopteryx (from Ancient Greek Î±ÏÏÎ±Î¹Î¿Ï archaios meaning ancient and ÏÏÎµÏÏ Î¾ pteryx meaning feather or wing; pronounced ), from the late Jurassic Period (Kimmeridgian stage, 155-150 million years ago) of what is now Germany, is the earliest and most primitive known avian. ... Families See text Theropods (beast foot) are a group of bipedal, primarily carnivorous dinosaurs, belonging to the saurischian (lizard-hip) family. ... This article does not cite its references or sources. ... Families Hesperornithidae Hesperornithiformes are an extinct and highly specialized order of Cretaceous toothed birds. ...
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