Miocene birds of North America

Bathornithidae is an extinct family of birds from the Eocene to Miocene of North America. Part of Cariamiformes, they are related to the still extant seriemas and the extinct Phorusrhacidae. They were likely similar in habits, being terrestrial, long-legged predators, some of which attained massive sizes.

Arenicolumba prattae is an extinct species of small pigeon from the Miocene of Florida. It was described from fossil material (a left coracoid) collected at the Thomas Farm Site in Gilchrist County, northern Florida, south-eastern United States. The genus name Arenicolumba comes from the Latin arena ("sandy place") with reference to the sandy, fossiliferous sediments of the collection site, and columba ("pigeon"). Originally described in 1992 as Columbina prattae, it was moved to the new genus in 2008.

Bathornis ("tall bird") is an extinct lineage of birds related to modern day seriemas, that lived in North America about 37–20 million years ago. Like the closely related and also extinct phorusrhacids, it was a flightless predator, occupying predatory niches in environments classically considered to be dominated by mammals. It was a highly diverse and successful genus, spanning a large number of species that occurred from the Priabonian Eocene to the Burdigalian Miocene epochs.

Megapaloelodus is an extinct genus of stem flamingo of the family Palaelodidae. Megapaloelodus is primarily known from Miocene America, from South Dakota and Oregon in the north to Argentina in the south, but the species Megapaloelodus goliath was found in Europe. Additionally, one unnamed species was discovered in Miocene sediments from Namibia. Due to a lack of skull material, little can be said about the ecology of Megapaloelodus. Species of this genus are typically larger than those of Palaelodus and appear to have inhabited similar brackish lake environments. Additionally, they may have been capable of "locking" their legs in a standing position.

Palaeoscinis (meaning "ancient oscine") is an extinct genus of songbird described in 1957 from the middle Miocene of the Monterey Formation in Santa Barbara, California. It is assigned to the extinct monotypic family Palaeoscinidae, and contains the type and only species P. turdirostris.

Rhegminornis calobates is an extinct species of turkey from the early Miocene of Florida. It was described by Alexander Wetmore in 1943.

Apatosagittarius is an extinct monotypic genus of Accipitridae from the Late Miocene of Nebraska. Only one species has been described, Apatosagittarius terrenus. The genus name, which Feduccia and Voorhies translate as "false secretarybird," refers to the bird's superficial resemblance to the living secretary bird.

Cyphornis is a genus of the prehistoric pseudotooth birds. These were probably rather close relatives of either pelicans and storks, or of waterfowl, and are here placed in the order Odontopterygiformes to account for this uncertainty.

Bathornis ("tall bird") is an extinct lineage of birds related to modern day seriemas, that lived in North America about 37–20 million years ago. Like the closely related and also extinct phorusrhacids, it was a flightless predator, occupying predatory niches in environments classically considered to be dominated by mammals. It was a highly diverse and successful genus, spanning a large number of species that occurred from the Priabonian Eocene to the Burdigalian Miocene epochs.

Osteodontornis is an extinct seabird genus. It contains a single named species, Osteodontornis orri (Orr's bony-toothed bird, in literal translation of its scientific name), which was described quite exactly one century after the first species of the Pelagornithidae (Pelagornis miocaenus) was. O. orri was named after Santa Barbara Museum of Natural History paleontologist Phil C. Orr, for his recognition of the importance of the specimen.