体形仍是“类软体动物”，并非冠群定义
More than 35 White Sea specimens preserve bilateral organization and a dorsal cover, but no radula or crown-mollusc diagnosis.
具名埃迪卡拉纪样本检验性状同源，但不会因此成为直接祖先或软体动物全球首现。
claim:event:kimberella-white-sea-morphology横跨软体与腕足动物体制的十三个证据档案
从具名化石进入现生基因组与实验，同时严格区分观察、同源、拓扑和命名。
每一步标明所依据的主张，引用列于下方。交互探索状态可在完整应用中打开；故事本身仍是编辑综合。
故事步骤
重复齿列使齿舌假说可检验
Across 189 Odontogriphus specimens, paired teeth on a membrane show posterior replacement beside a broad foot and mantle groove.
The geometry is observed; radular homology and stem-mollusc placement remain comparative conclusions.
claim:event:odontogriphus-radula-sample壳与骨片出现在同一关节相连身体
Orthrozanclus combines an anterior shell, three zones of imbricating sclerites and long marginal spines.
Halwaxiida is a scored topology, not an observed ancestor chain or secure crown assignment.
claim:event:orthrozanclus-halwaxiid-mosaic壳切片区分层片与珍珠层
Pojetaia sections preserve a laminar inner fabric compared with foliated aragonite; undisputed Cambrian nacre is withheld.
Preservation and homology limit mineral interpretation; the sections do not establish every bivalve shell pathway.
claim:event:pojetaia-shell-microstructure软体身体检验棘手的头足类假说
Nectocaris has paired eyes, fins, two tentacles and a funnel-like structure in ninety newly prepared specimens.
Missing shell, siphuncle, beak and radula evidence keeps the cephalopod placement explicitly contested.
claim:event:nectocaris-soft-body-cephalopod-test一套系统基因组矩阵恢复有棘类
在 Kocot 等人的分析中，石鳖与采样无板类成组，腹足类与双壳类组成另一获支持支系。
Monoplacophora was absent and some alternatives were not rejected, so the result remains matrix-specific.
claim:event:aculifera-phylogenomic-topology第二套矩阵加入全部主要现生类群
Fifteen new transcriptomes bring Monoplacophora into an all-class sample that recovers it with Cephalopoda in principal analyses.
保留相互冲突的深层节点和修正后的补充图，而不把它们平均成虚假确定性。
claim:event:all-class-mollusc-phylogenomics胚胎把 Nodal 与壳手性连接起来
Lottia and Biomphalaria express nodal and Pitx on opposite sides; inhibition disrupts pathway output and shell coiling.
这一现生实验不直接复原化石扭转或每一种腹足类盘卷机制。
claim:event:gastropod-nodal-chirality基因组在无复制前提下检验头足类创新
One Octopus bimaculoides genome and twelve tissue transcriptomes reveal targeted family expansions and extensive rearrangement.
比较关联不是腕、吸盘或神经复杂性的单基因原因；全基因组复制未获支持。
claim:event:octopus-genome-innovation两类分离骨片建立可证伪模型
Micrina mitral and sellate sclerites have complementary geometry and muscle scars used to reconstruct a sessile bivalved animal.
关节关系与壳瓣同源是复原，不是保存的完整动物或已定论干群拓扑。
claim:event:micrina-bivalved-reconstruction钙质腕足动物保存软组织解剖
Kutorgina chengjiangensis preserves an early spirolophe, digestive tract and pedicle within paired valves.
Direct anatomy informs comparison but does not make Kutorgina the ancestor of living rhynchonelliformeans.
claim:event:kutorgina-soft-tissue-anatomy现生腕足动物壳在三层数据中受检验
海豆芽基因组、分期转录组与壳体蛋白组把共享成分同谱系特异磷酸盐壳蛋白分开。
共享基因不表示壳体相同、与脊椎动物骨同源或化石记录中形态停滞。
claim:event:lingula-genome-biomineralization管、壳瓣和触手冠拒绝简单祖先阶梯
Yuganotheca combines paired agglutinated valves, a horseshoe lophophore, a bipartite tube and a long pedicle.
COL26.8 在此路由 159,801 个现生接受名；命名覆盖不能解决这一化石镶嵌，也不能把十三个档案变成祖先序列。
claim:event:yuganotheca-tubular-lophophorate参考文献
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- The Early Cambrian tommotiid Micrina, a sessile bivalved stem group brachiopodHolmer, L.E.; Skovsted, C.B.; Brock, G.A.; Valentine, J.L.; Paterson, J.R. · 2008 · DOI 10.1098/rsbl.2008.0277
- Rhynchonelliformean brachiopods with soft-tissue preservation from the Early Cambrian Chengjiang Lagerstätte of South ChinaZhang, Z.; Shu, D.; Emig, C.; Zhang, X.; Han, J.; Liu, J.; Li, Y.; Guo, J. · 2007 · DOI 10.1111/j.1475-4983.2007.00725.x
- The Lingula genome provides insights into brachiopod evolution and the origin of phosphate biomineralizationLuo, Y.-J.; Takeuchi, T.; Koyanagi, R.; Yamada, L.; Kanda, M.; Khalturina, M.; Fujie, M.; Yamasaki, S.; Endo, K.; Satoh, N. et al. · 2015 · DOI 10.1038/ncomms9301
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