still in use for an oogenus of fossil bird eggs. Also, other animals (in particular pterosaurs) were placed in these "genera". In sources pre-dating the...

classification List of birds List of bird genera List of dinosaur ichnogenera List of fossil bird genera List of informally named dinosaurs List of ichthyosaur...

Holocene List of dinosaur genera List of fossil bird genera List of Late Quaternary prehistoric bird species List of fossil primates Lists of prehistoric...

flocks of geese graze crops in the winter.[citation needed] List of recently extinct birds Late Quaternary prehistoric birds List of fossil bird genera Wikimedia...

Lists of birds by region Extinct birds List of recently extinct bird species List of Late Quaternary prehistoric bird species List of fossil bird genera List...

of prehistoric animals: List of prehistoric amphibian genera List of prehistoric mammals List of fossil bird genera List of crurotarsan genera List of...

of chicken eggs and the yolks are roughly four times as massive. List of recently extinct birds Late Quaternary prehistoric birds List of fossil bird...

subspecies of the spotted towhee. Bird extinction Dinosaur Flightless bird Holocene extinction Lazarus taxon List of bird extinctions by year List of fossil bird...

private collections. Valenticarbo List of fossil bird genera Mayr, Gerald (April 21, 2009). Paleogene Fossil Birds. Berlin: Springer. pp. 65–67. ISBN 978-3-540-89627-2...

in zoos. Flightless bird List of fossil bird genera List of Late Quaternary prehistoric bird species List of recently extinct bird species This designation...