摘要
Fissurellidae are marine gastropods with a worldwide distribution and a rich fossil record. We integrate molecular, geographical and fossil data to reconstruct the fissurellid phylogeny, estimate divergence times and investigate historical routes of oceanic dispersal. With five molecular markers for 143 terminals representing 27 genera, we resolve deep nodes and find that many genera (e.g., Emarginula, Diodora, Fissurella) are not monophyletic and need systematic revision. Several genera classified as Emarginulinae are recovered in Zeidorinae. Future work should prioritize emarginuline genera to improve understanding of ancestral traits and the early evolution of fissurellids. Tree calibration with the fossilized birth-death model indicates that crown fissurellids originated around 175 Ma, and generally resulted in younger ages for the earliest nodes than the node dating approach. Model-based biogeographic reconstruction, supported by fossils, infers an Indo-West Pacific origin, with a westward colonization of new oceans via the Tethys Seaway upon the breakup of Pangea. Western Atlantic clades then served as source for dispersal towards other parts of the globe. As the sister group to all other fissurellids, Rimula is ranked in its own subfamily, Rimulinae stat. nov. New synonyms: Hemitominae syn. nov. of Zeidorinae stat. nov.; Cranopsis syn. nov. of Puncturella; Variegemarginula syn. nov. of Montfortula.
摘要译文
Fissurellidae是海洋腹足动物，具有世界范围的分布和丰富的化石记录。我们整合分子，地理和化石数据，以重建裂隙系统发育，估计分歧时间和调查海洋扩散的历史路线。我们用143个终端的5个分子标记代表27个属，我们解析了深节点，发现许多属（例如，Emarginula，Diodora，Fissurella）不是单系的，需要系统修正。分类为Emarginulinae的几个属在Zeidorinae中被回收。未来的工作应优先考虑emarginuline属，以提高对祖传性状和裂隙菌的早期进化的理解。使用化石出生死亡模型进行的树木校准表明，冠状裂隙起源于175Ma左右，并且通常导致最早节点的年龄比节点测年方法更年轻。基于模型的生物地理重建，由化石支撑，推断印度 - 西太平洋起源，在Pangea解体后通过特提斯海道向西殖民化。西大西洋分支随后成为向全球其他地区扩散的源头。作为所有其他裂隙的姐妹群体，Rimula在其自己的亚科Rimulinae统计中排名。十一月新的同义词：Hemitominae syn。十一月Zeidorinae stat。十一月; Cranopsis syn。十一月穿刺; Variegemarginula syn。十一月蒙特福特拉
Tauana JunqueiraCunha[a];SarahLemer[a][1];PhilippeBouchet[b];YasunoriKano[c];GonzaloGiribet[a];. Putting keyhole limpets on the map: phylogeny and biogeography of the globally distributed marine family Fissurellidae (Vetigastropoda, Mollusca)[J]. Molecular Phylogenetics and Evolution, 2019,135: 249-269