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John A. Long Carole J. Burrow Alex Ritchie 《Alcheringa: An Australasian Journal of Paleontology》2013,37(1):147-156
The ischnacanthid acanthodian Grenfellacanthus zerinae gen. et sp. nov. is described on the basis of two large jaw bones from the Late Devonian (late Famennian) Hunter Formation, near Grenfell, N.S.W. The new species is the youngest known ischnacanthid, and the largest ischnacanthid from Gondwana. As for many ischnacanthids, the structure of the jaws and teeth indicate that Grenfellacanthus was probably an ambush predator. 相似文献
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Carole Rawcliffe 《Gender & history》2009,21(1):147-169
Drawing upon a wide range of primary sources, this article argues that a study of the medieval laundress can illuminate wider social attitudes to hygiene as well as to low status women. Having considered the many types of laundry workers active in England and northern France between c.1300 and 1550, it examines the techniques they used, as well as the hazards encountered through exposure to difficult conditions. Such factors, along with the freedom of movement enjoyed by many laundresses, often harmed their collective reputation. That responses to those who dealt with the community's dirty clothing were highly ambivalent is reflected in contemporary writing about laundresses, and in the measures taken to regulate them. Finally, we turn to remuneration. The sporadic survival of financial evidence means that our knowledge of wage rates remains impressionistic. But some laundry workers were surprisingly well rewarded. This confirms the value placed, in elite households at least, upon the cleanliness of personal linen. 相似文献