نتایج جستجو برای: carboniferous

تعداد نتایج: 2050  

2012
Russell Garwood Andrew Ross Daniel Sotty Dominique Chabard Sylvain Charbonnier Mark Sutton Philip J. Withers

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...

2003
Michael J. Haugen B. Irene Tieleman Joseph B. Williams

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...

Journal: :Geological Society of America Bulletin 1891

Journal: :Geological Magazine 1958

Journal: :Geological Magazine 1896

Journal: :Botanical Gazette 1894

Journal: :Geological Magazine 1920

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید