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Prehistoric birds / Geology of Kansas / Hesperornithidae / Hesperornithes / Niobrara Formation / Baptornis / Hesperornis / Ichthyornis / Cretaceous / Phanerozoic / Extinct birds / Mesozoic
Date: 2009-05-18 07:51:46
Prehistoric birds
Geology of Kansas
Hesperornithidae
Hesperornithes
Niobrara Formation
Baptornis
Hesperornis
Ichthyornis
Cretaceous
Phanerozoic
Extinct birds
Mesozoic

Ac ta Vol. 28, No. 1-2

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