Supplementary Table 1

Observed contact incidences between apical plate pairs in echinoids along with topological index values. Abbreviations: OUT, outgroup representing the regular pattern; BI, basal Irregularia; BA, basal Atlostomata; H, Holasteroida; S, Spatangoida. EJ, Early Jurassic (Liassic); MJ, Middle Jurassic; LJ, Late Jurassic; EC, Early Cretaceous; LC, Late Cretaceous; PN, Paleogene and Neogene; P, Present day. OI to OV, ocular plates 1 to 5; G1 to G5, genital plates 1 to 5. Apical systems of reference specimens are from the literature and from specimens observed in collections. Collection specimens are from private collections: Clavel, Courville, Fournier, Vadet, and Votat. Collection specimens from academic collections are from: University of Burgundy, Dijon, France (UB), National History Museum, London, UK (NHM), Museum of Comparative Zoology, Harvard University, Mass. (MCZ), Museu de Geologia, Barcelona, Spain (MGB), Muséum National d'Histoire Naturelle, Paris, France (MNHN), University of California Museum of Paleontology, Berkeley (UCMP), Saint-Petersburg State University, Russia (SPU), University of Toulouse, France (UT), National Museum of Natural History, Smithsonian Institution, Washington, D.C. (USNM), Institute of Paleobiology of Polish Academy of Sciences in Warsaw, Poland (PAS), Sedgwick Museum of Earth Sciences, University of Cambridge, UK (SM), Museum of Lyon, France (ML), Paleontological Institute of the Russian Academy of Sciences, Moscow, Russia (RAS), Département de Géologie de la Faculté des Sciences d’Agadir, Morocco (MAS), Museum of Grenoble, France (MG).本数据集记录了海胆类（Echinoids）顶骨板对之间的接触发生率，以及相关拓扑指数数值。缩写说明如下：OUT为代表规整形态的外类群（outgroup）；BI为基底不规则海胆亚纲（basal Irregularia）；BA为基底前口亚纲（basal Atlostomata）；H为心形海胆目（Holasteroida）；S为蝟团海胆目（Spatangoida）。 EJ为早侏罗世（Early Jurassic，又称莱伊阿斯期（Liassic））；MJ为中侏罗世；LJ为晚侏罗世；EC为早白垩世；LC为晚白垩世；PN为古近纪与新近纪；P为现代。 OI至OV分别对应眼板1至5（ocular plates 1 to 5）；G1至G5分别对应生殖板1至5（genital plates 1 to 5）。 参考标本的顶系（apical systems）数据来源于文献及馆藏标本观测结果。馆藏标本来自以下私人收藏：克莱维尔（Clavel）、库尔维尔（Courville）、富尼耶（Fournier）、瓦代（Vadet）及沃塔（Votat）所藏标本。 学术馆藏标本来源于以下机构：法国第戎勃艮第大学（University of Burgundy, UB）、英国伦敦自然历史博物馆（National History Museum, NHM）、美国马萨诸塞州哈佛大学比较动物学博物馆（Museum of Comparative Zoology, Harvard University, MCZ）、西班牙巴塞罗那地质博物馆（Museu de Geologia, MGB）、法国巴黎国家自然历史博物馆（Muséum National d'Histoire Naturelle, MNHN）、美国加州大学伯克利分校古生物博物馆（University of California Museum of Paleontology, UCMP）、俄罗斯圣彼得堡国立大学（Saint-Petersburg State University, SPU）、法国图卢兹大学（University of Toulouse, UT）、美国华盛顿特区史密森学会国家自然历史博物馆（National Museum of Natural History, Smithsonian Institution, USNM）、波兰华沙波兰科学院古生物研究所（Institute of Paleobiology of Polish Academy of Sciences, PAS）、英国剑桥大学塞奇威克地球科学博物馆（Sedgwick Museum of Earth Sciences, University of Cambridge, SM）、法国里昂博物馆（Museum of Lyon, ML）、俄罗斯莫斯科俄罗斯科学院古生物研究所（Paleontological Institute of the Russian Academy of Sciences, RAS）、摩洛哥阿加迪尔科学学院地质系（Département de Géologie de la Faculté des Sciences d’Agadir, MAS）、法国格勒诺布尔博物馆（Museum of Grenoble, MG）。