Paracrax ("near curassow") is a genus of extinct North American flightless birds, possibly related to modern seriemas and the extinct terror birds. Part of Bathornithidae (though some analysis recover it as closer to the living seriemas instead,[1] or possibly entirely out of Cariamiformes[2]), it is a specialised member of this group, being cursorial carnivores much like their South American cousins, some species attaining massive sizes.
^Mayr, G., & Noriega, J. I. A well-preserved partial skeleton of the poorly known early Miocene seriema Noriegavis santacrucensis (Aves, Cariamidae).
^Gerald Mayr (2016). "Osteology and phylogenetic affinities of the middle Eocene North American Bathornis grallator—one of the best represented, albeit least known Paleogene cariamiform birds (seriemas and allies)". Journal of Paleontology 90 (2): 357–374. doi:10.1017/jpa.2016.45.
Paracrax ("near curassow") is a genus of extinct North American flightless birds, possibly related to modern seriemas and the extinct terror birds. Part...
group, with Bathornis and kin being sister taxa to phorusrhacids while Paracrax is rendered closer to modern seriemas, though this assessment is heavily...
as a polyphyletic group. It is usually considered the sister clade to Paracrax, and several authorities consider Neocathartes and several other taxa to...
niche in North America across the Eocene to Early Miocene; some, like Paracrax, were similar in size to the largest phorusrhacids. At least one analysis...
forms of mammals. At the top of the food chains were huge birds, such as Paracrax. Carbon dioxide levels were approximately 1,400 ppm. The temperature was...
have also been suggested to be seriemas, as has the massive predatory Paracrax from the Oligocene of North America, though their status remains uncertain...
"Oligocorax") mediterraneus is now considered to belong to the bathornithid Paracrax antiqua. "P." subvolans was actually a darter (Anhinga). Birds portal Animals...
advanced carnivorans and died out. In North America, the bathornithids Paracrax and Bathornis were apex predators but became extinct by the Early Miocene...
genus of the Bathornithidae, large predatory birds related to seriemas. †Paracrax †Bathornithidae Closely related and similar to the conspecific Bathornis;...
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