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Enw gwyddonolStatws
Canadagafossil genus (extinct)
Canadaga arcticafossil species (extinct)
Coniornisfossil genus (extinct)
Hesperornisfossil genus (extinct)
Hesperornis altusfossil species (extinct)
Hesperornis bairdifossil species (extinct)
Hesperornis chowifossil species (extinct)
Hesperornis crassipesfossil species (extinct)
Hesperornis gracilisfossil species (extinct)
Hesperornis macdonaldifossil species (extinct)
Hesperornis mengelifossil species (extinct)
Hesperornis montanafossil species (extinct)
Hesperornis regalisfossil species (extinct)
Hesperornis rossicusfossil species (extinct)
Lestornisfossil genus (extinct)
Parahesperornisfossil genus (extinct)
Parahesperornis alexifossil species (extinct)
Fumicollisfossil genus (extinct)
Fumicollis hoffmanifossil species (extinct)
Asiahesperornisfossil genus (extinct)
Asiahesperornis bazhanovifossil species (extinct)

Avibase wedi bod yn ymweld â 282,991,346 gwaith ers Mehefin 24, 2003. © Denis Lepage | Polisi preifatrwydd Mae'r cyfieithiad y dudalen hon ei gwblhau gyda help y cyfieithiad Google arfau awtomataidd.