Gastornithiformes
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Gastornithiformes are an extinct order of giant flightless fowl with fossils found in North America, Eurasia, and possibly Australia and Argentina.
Gastornis skeleton
Gastornis giganteus restoration
Patagonykuspuertai
Confuciusornis plumage pattern
Brontornis
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Brontornis is an extinct genus of giant bird that inhabited Argentina during the Early to Middle Miocene. Its taxonomic position is highly controversial, with authors alternatively considering it to b
Gastornithiformes
…of their parsimony-based phylogeny supporting gastornithiforms as anserimorphs. In a 2021 paper by Agnolin found the enigmatic Argentinian genus Brontornis from the Miocene deposits, often considered to be a terror bird, to be the sister taxon to the dromornithids, in a clade that was sister to species of…
Brontornis burmeisteri femore sinistro
Brontornis burmeisteri tarsometatarso sinistro
Brontornis (red) compared to a human
Brontornis burmeisteri DB24