High Quality Content by WIKIPEDIA articles! Enantiornithes is an extinct group of primitive birds. They were the most abundant and diverse avialans of the Mesozoic. Almost all retained teeth and clawed hands, like other primitive birds. Enantiornithines are thought to have left no living descendants. See protobirds. A consensus of scientific analyses indicates that Enantiornithes is one of two major sister groups of derived birds. The other group is the Ornithurae, which includes all living birds as a subset. This means that Enantiornithines are a successful branch of bird evolution, but one that diversified entirely separately from the lineage leading to modern birds. This consensus has never been universally accepted and is being challenged by new studies, so that it is possible that enantiornithines may actually represent successive outgroups on the lineage leading to modern birds. See Apsaravis.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.