Smart-winged pterosaurs
نویسندگان
چکیده
منابع مشابه
The Bible and Pterosaurs
There is an increasing amount of archaeological and linguistic evidence that pterosaurs (flying reptiles) were mentioned by several authors of Scripture. This introductory article will deal with some of those biblical words and what I've learned about them from word studies and archaeology. The scientific basis for this study has been established by articles for peer-reviewed scientific publica...
متن کاملThe Origin of Pterosaurs
In 1914, Freiherr Friedrich von HUENE restudied the five nearly complete skeletons and miscellany of Scleromochlus taylori (Fig. 1), a small archosaur from the Elgin Sandstone (Upper Triassic: Norian?) of Lossiemouth, Scotland (WOODWARD 1907) . The tiny skeletons are preserved only as impressions in a coarse sandstone matrix; yet HUENE, using "strongly one-sided, artistic illumination, identifi...
متن کاملConstraints on the wing morphology of pterosaurs.
Animals that fly must be able to do so over a huge range of aerodynamic conditions, determined by weather, wind speed and the nature of their environment. No single parameter can be used to determine-let alone measure-optimum flight performance as it relates to wing shape. Reconstructing the wings of the extinct pterosaurs has therefore proved especially problematic: these Mesozoic flying repti...
متن کاملPotential for intracranial movements in pterosaurs.
Based on comparative anatomical, morphological, and phylogenetic considerations the potential of pterosaurs for cranial kinesis is assessed. Our investigation shows that whereas skeletally mature derived pterodactyloids have completely fused, rigid and doubtlessly akinetic skulls, skeletally immature derived pterodactyloids and more basal pterosaurs possess key features in the morphology of the...
متن کاملAvian-style respiration allowed gigantism in pterosaurs.
Powered flight has evolved three times in the vertebrates: in the birds, the bats and the extinct pterosaurs. The largest bats ever known are at least an order of magnitude smaller than the largest members of the other two groups. Recently, it was argued that different scaling of wingbeat frequencies to body mass in birds and bats can help explain why the largest birds are larger than the large...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 2003
ISSN: 0028-0836,1476-4687
DOI: 10.1038/425910b