SINCE 1828
Stereornithes
plural noun
Stere·or·ni·thes
| \ˌsterēˈȯrnəˌthēz, ˌstir-, -ˌȯrˈnī(ˌ)thēz\
Definition of Stereornithes
in former classifications
: an artificial or a composite order of very large Miocene Patagonian birds believed to be ratite and mostly included in the order Gruiformes
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