Extended Data Fig. 10: Spatiotemporal distribution of the Cambrian Burgess Shale-type biotas and comparisons of their taxonomic compositions.
From: A Cambrian soft-bodied biota after the first Phanerozoic mass extinction
a, Estimated geological time range of Burgess Shale-type (BST) biotas from Cambrian Epoch 2 to Miaolingian based on global biostratigraphic correlations (time ranges in Supplementary Table 2). b, Palaeogeographic reconstruction at 510 Ma based on PaleoAtlas and PaleoCoastlines data of the PALEOMAP Project56,65,66, showing the locations of BST biotas (palaeocoordinates in Supplementary Table 2). Note that the positions of plates only slightly changed from Cambrian Age 3 to Guzhangian (~521–497 Ma). c–f, Non-metric multidimensional scaling ordination of genus occurrences of Cambrian BST biotas. Biotas of different ages are depicted as colourful symbols. Genera are shown in light grey text. c, d, Results from using Jaccard index. e, f, Results from using Ochiai index. c, e, Singletons of genera included. d, f, Singletons of genera excluded. g, h, Species composition of phyla and sub-phylum groups in Cambrian BST biotas. g, Species proportion. h, Species richness. Results in b adapted with permission from ref. 56, reproduced under a Creative Commons licence CC BY 4.0.
