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Date: 2009-05-18 07:51:46Prehistoric birds Geology of Kansas Hesperornithidae Hesperornithes Niobrara Formation Baptornis Hesperornis Ichthyornis Cretaceous Phanerozoic Extinct birds Mesozoic | Ac ta Vol. 28, No. 1-2Add to Reading ListSource URL: www.app.pan.plDownload Document from Source WebsiteFile Size: 1,09 MBShare Document on Facebook |
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American Paleontologist (Page 1)DocID: 98ZS - View Document | |
Stvdia geologica salmanticensia, 2010, vol. 46, n. 2DocID: 98VD - View Document | |
Ac ta Vol. 28, No. 1-2DocID: 34G7 - View Document | |
atmospheric oxygen levels may have had a profound influence on metabolism and growth of ectothermic amniotes in their evolutionary history (e.g., acting as a constraint on growth rates in some Triassic taxa). Attempts to infer growth rates of extinct taxa from their fossil bone microstructure should consider contemporary oxygen levelsDocID: 1N7T - View Document |