2025-11-23 05:37 浏览次数 10
[古生] 菊石
ammonoid assemblage菊石组合
ammonoid fossil菊石化石
Late Permian-Earliest Triassic Ammonoid Sequen湖南桑植县仁村坪上二叠统
ammonoid facies菊石相
ammonoid zone菊石带
ammonoid fauna菊石动物群
After each extinction, a rich variety of ammonoid species and body plans was replaced by a few free-floating types.
在每次物种灭绝之中,大量的菊石和体平面为少量浮游动物所替代。