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James Blatch Piggott Dennis (1815-1861) was an English paleontologist and natural historian. ==Biography== James Dennis was born on 4 August 1815 and educated at Bedford School and The Queen's College, Oxford. He was ordained in 1839.〔(【引用サイトリンク】title=Dennis, James Blatch Piggott (1815-1861), palaeontologist and natural historian )〕 Dennis is best known for his microscopic research into the internal structure of bone, of which he provided an account in papers published in the ''Journal of Microscopical Science''. He is credited with having established two important geological facts: the existence of mammals prior to the lias deposit, and the existence of birds during, or prior to, the deposit of the Stonesfield slate.〔Journ. Microsc. Sci. iv. 261, v. 63, 191〕 A mammal jawbone which Dennis discovered in the Stonesfield slate was the subject of a paper which was read to the Geological Society.〔Geol. Soc. Journ. xiii. 1–11〕 In 1860, Dennis read a paper to the British Association "On the Mode of Flight of the Sterodactyles of the Coprolite bed near Cambridge".〔Brit. Assoc. Rep. 1860, p. 76〕 Besides contributing papers to the ''Journal of Microscopical Science'' and other journals, Dennis was the author of various pamphlets on theological and scientific subjects. He died on 13 January 1861 in Bury St Edmunds.〔(【引用サイトリンク】title=Dennis, James Blatch Piggott (DNB00) )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「James Blatch Piggott Dennis」の詳細全文を読む スポンサード リンク
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