منابع مشابه
Tomographic Reconstruction of Neopterous Carboniferous Insect Nymphs
Two new polyneopteran insect nymphs from the Montceau-les-Mines Lagerstätte of France are presented. Both are preserved in three dimensions, and are imaged with the aid of X-ray micro-tomography, allowing their morphology to be recovered in unprecedented detail. One-Anebos phrixos gen. et sp. nov.-is of uncertain affinities, and preserves portions of the antennae and eyes, coupled with a heavil...
متن کاملWhen vertebrates invaded land during the Carboniferous
period, they were exposed not only to new ecological opportunities but also to a desiccating environment (Williams and Tieleman, 2002). To maintain cellular water homeostasis in such an environment, natural selection modified the integument of pioneering terrestrial animals, enabling them to reduce water loss through the skin. Nowhere is this modification of the integument more important than f...
متن کاملFire ecology of a Late Carboniferous floodplain, Joggins, Nova Scotia
The facies distribution and palaeobotanical identity of fossil charcoal is described from the Upper Carboniferous (Westphalian A–B) Joggins section, Nova Scotia, in order to examine the fire ecology of early Westphalian floodplains. Three charcoal assemblages are noted. Assemblage (1) consists of channel sandstone bodies, containing beds of calcrete breccia, cordaite logs (up to 3 m long), and ...
متن کاملLepidodendron hickii and Generic Delimitation in Carboniferous Lepidodendrid Lycopods
Lepidodendron hickii is tlie only anatomically preserved Carboniferous lepidodendrid with leaf cushions referable to the compression-based L. aculeatum, the type of Lepidodendron. Historically Lepidodendron has come to encompass several kinds of arborescent lycopods with distinctive vegetative and reproductive morphologies, among which no truly intermediate forms are known. These include totall...
متن کاملChanges in ocean denitrification during Late Carboniferous glacial–interglacial cycles
Department of Geology, University of Cincinnati, Cincinnati, Ohio 45221-0013, USA Department of Earth and Environmental Sciences, University of Texas at Arlington, Arlington, Texas 76019, USA Center for Applied Energy Research, 2540 Research Park Drive, Lexington, Kentucky 40511, USA Institute for Geology and Mineralogy, University of Cologne, D-50674 Cologne, Germany Barrett Honors College, Ar...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1921
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800090282