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Enw gwyddonolStatws
Fissuravisfossil genus (extinct)
Fissuravis weigeltifossil species (extinct)
Lithornisfossil genus (extinct)
Lithornis celetiusfossil species (extinct)
Lithornis hookerifossil species (extinct)
Lithornis nasifossil species (extinct)
Lithornis plebiusfossil species (extinct)
Lithornis promiscuusfossil species (extinct)
Lithornis vulturinusfossil species (extinct)
Paracathartesfossil genus (extinct)
Paracathartes howardaefossil species (extinct)
Promusophagafossil genus (extinct)
Promusophaga magnificafossil species (extinct)
Pseudocrypturusfossil genus (extinct)
Pseudocrypturus cercanaxiusfossil species (extinct)

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