释义 |
Orthograptus 基本例句 直笔石属¹⁰⁰ The Longmaxi formation of Lower Silurian is ten metres in thickness,containing three graptolite zones:Glyptograptus persculptus,Parakidograptus acuminatus andOrthograptusvosiculosus.下志留统龙马溪组厚10m;含Glyptograptus persculptus;Parakidograptus acuminatus及Orthograptusvosiculosus三个笔石带. |