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Sloths, which once roamed the Americas, ranged from tiny, cat-sized animals that lived in trees to massive ground sloths that may have weighed up to six tons. The only species we know today are two-to...
Shaking up the fish family tree:'Living fossil' not as old as we thought（图）
shaking up the fish family tree living fossil as old as we thought
2017/9/19
Polypterids are weird and puzzling African fish that have perplexed biologists since they were discovered during Napoleon's expedition to Egypt in the late 1700s.Often called living fossils, these eel...
期刊信息
篇名
A new Lacewings family from the Middle Jurassic of Inner Mongolia, China (Neuoptera)
语种
英文
撰写或编译
作者
Ren Dong
第一作者单位
刊物名称
Entomologia Sinica
页面
2002,9(4):53-67.
出版日期
2002年
月
日
文章标识(ISSN)
相关项目
北...
Crystal structure of boralsilite and its relation to a family of boroaluminosilicates, sillimanite, and andalusite
boralsilite boroaluminosilicates sillimanite andalusite
2012/3/31
Boralsilite, Al B Si O , is monoclinic, space group C2/m, with a = 14.767(1), b = 5.574(1), c =
15.079(1) ?, ? = 91.96(1)?, and Z = 2. The structure was solved with direct methods and refined to an
...
Solid solution in the celadonite family:The new minerals ferroceladonite, K2Fe2+2Fe3+2Si8O20(OH)4,and ferroaluminoceladonite, K2Fe2+2Al2Si8O20(OH)4
Solid solution celadonite family new minerals ferroceladonite K2Fe2+2Fe3+2Si8O20(OH)4 ferroaluminoceladonite K2Fe2+2Al2Si8O20(OH)4
2012/4/5
Celadonite-familymicamineralsoccurringintheTriassicGavenwoodTuffs,Murihiku
Supergroup,HokonuiHills,Southland,NewZealand,havebeenanalyzedbyXRD,TEM,
AEM,andEMPA.Packetsafewunitcellstoseveralhundrednan...