青年中文graptolites的意思
graptolites中文翻譯：
筆石類
graptolite───[古生]筆石動物；[古生]筆石
graptolitic───筆石的
datolites───n.硅灰硼石；硅鈣硼石
granulites───n.[巖]麻粒巖；粒變巖
saprolites───n.殘余土；[地質]腐泥土
scapolites───n.[礦物]方柱石
troctolites───n.橄長石；[巖]橄長巖
cryptozoites───潛隱體
aerolites───n.[地質]隕石；石隕石
Between one edge of the three-foot-thick gray band and the other, some 80 percent of marine species died out, many of them the sorts of creatures, like graptolites, that no longer exist.───約1米厚的灰色巖石帶子的各個帶層之間，約80%的海洋物種滅絕了，其中許多是生物物種，象筆石動物，再也不會在這個世界上存在了。
During the Ordovician, most life was in the sea, so it was sea creatures such as trilobites, brachiopods and graptolites that were drastically reduced in number.───在奧陶紀，大多數生命都生活在海洋里，所以海洋生物，例如三葉蟲、腕足類動物與筆石動物的數量在此時急劇減少。
The graptolites are generally preserved as films in mudstones or muddy siltstones at the depths of thousands meters beneath the surface.───這些筆石標本一般保存成薄膜狀于數千米之下的泥巖或泥質粉砂巖之中。
Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.───表明筆石詳細構造的物質是利用氫氟酸從石灰巖中侵蝕出來。
Lower Silurian graptolites from southern Anhui───安徽南部下志留統筆石
On this argument the graptolites should have been bottom dwelling-colonial organisms, living by filtering small particles of food from the water.
Several of these graptolites are preserved on the flat bedding surfaces of a black shale.
Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.