志留纪－泥盆纪  silurian-devonian

志留－泥盆纪  silurian-devonian

志留泥盆纪冰期  Siluro-Devonian ice age

奥陶纪-志留纪  karst rocky shore

奥陶纪-志留纪边界  Ordovician-Silurian boundary

泥盆纪盆地  Devonian basin

安大略〔志留纪〕  Ontario

含盐统〔志留纪〕  Salinan

克令顿〔志留纪〕  clinton

门罗统〔志留纪〕  Monroan

志留纪  silurian period; silurian; nanhao formation; non-graptolitic facies

志留纪〔系〕  silurian

志留纪初  earliest Silurian

志留纪初期  earliest Silurian

志留纪原型盆地  Silurian prototype basin

志留纪早期  early silurian

中志留纪  middle Silurian

龙山统〔泥盆纪〕  beguiling

泥盆纪  Devonian period; devonian; early devonian; D

泥盆纪沉积盆地  Devonian sedimentary basin