II.—New Fossil Bird and Fish Remains from the Middle Eocene of Wyoming
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چکیده
منابع مشابه
Early to middle Eocene history of the Arctic Ocean from Nd-Sr isotopes in fossil fish debris, Lomonosov Ridge
[1] Strontium and neodymium radiogenic isotope ratios in early to middle Eocene fossil fish debris (ichthyoliths) from Lomonosov Ridge (Integrated Ocean Drilling Program Expedition 302) help constrain water mass compositions in the Eocene Arctic Ocean between !55 and !45 Ma. The inferred paleodepositional setting was a shallow, offshore marine to marginal marine environment with limited connect...
متن کاملNew omomyid primates (Haplorhini, Tarsiiformes) from middle Eocene rocks of west-central Hot Springs County, Wyoming.
Three new genera and four new species of omomyid primates constitute the first record of the Primates from upland middle Eocene rocks of Wyoming. One of these, Strigorhysis, gen. nov., possesses broadly basined molars with highly crenulated enamel which probably indicates a good deal of tough vegetable matter in its diet. Each of the new genera could have descended from known Wasatchian or earl...
متن کاملA skull of a new pelecaniform bird from the Middle Eocene of Messel, Germany
A skull of a new pelecaniform bird is described from the Middle Eocene of Messel (Germany). Masillastega rectirostris gen. et sp. nov. is tentatively referred to the Sulidae (boobies and gannets). If this assignment is correct, the new taxon would represent the earliest fossil record of the family, preceding Sula ronzoni Milne−Edwards, 1867 from the lowermost Oligocene of France by about 15 mil...
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پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...
15 صفحه اولA new raptorial bird from the Middle Eocene of Messel, Germany
Raptorial birds (“Falconiformes”) are very rare in the Middle Eocene fossil site Messel in Germany. In this study, a new taxon, Masillaraptor parvunguis gen. et sp. nov., is described that, as indicated by its long legs, appears to have been a fairly terrestrial bird, with rather weak claws and a beak without a strongly hooked tip. Phylogenetic assignment of M. parvunguis is, however, aggravate...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1900
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800181701