In this case, the xenacanthid shark is not much more but a time marker, indicating a late Palaeozoic age of the scene, if you are familiar for ancient fishes and faunas. A characteristic double-tipped tooth was indeed found in the redbeds of the Kyffh\u00e4user mountains in Germany. But the story is about latest Carboniferous wood and its mineralisation. Not only are petrified trunks a great archive for environments, as well as their taphonomy preserves the sedimentary bedding conditions around. The very minerals that copied the original plant in sub-cell details helped scientists to reconstruct tectonic events throughout their silent history as a fossil \u2013 which is more than 300 million years!<\/p>\n","protected":false},"excerpt":{"rendered":"
Digital painting of a Late Palaeozoic river landscape \u2014 petrified wood as an archive of tectonic history.<\/p>\n","protected":false},"author":2,"featured_media":4433,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"portfolio_category":[158],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-4036","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-palaeo-illustration"],"acf":{"pn_news":false,"pn_jahr":"2020","pn_taxon":"Xenacanthiformes","pn_auftraggeber":"","pn_ausstellung":"","pn_masse":"","pn_quelle_url":"https:\/\/doi.org\/10.1038\/s41598-026-60054-3; https:\/\/doi.org\/10.1111\/sed.12692","pn_lizenz":"\u00a9 Palaeonavix \u00b7 Frederik Spindler","pn_mitwirkende":"","pn_verwandte":[3777],"pn_links":null,"pn_publikationen":[{"zitat":"Tr\u00fcmper, S., Franz, M., Sosa, G., van den Kerkhof, A., Zeh, A., Tatzel, M., Kronz, A., Techmer, K., Di Rocco, T., Pack, A., & R\u00f6\u00dfler, R. (2016): Fossil wood cells recorded 300 million years of Europe\u2019s tectonic history. Nature Scientific Reports, 16: 22068.","url":"https:\/\/doi.org\/10.1038\/s41598-026-60054-3"},{"zitat":"Urspr\u00fcnglich f\u00fcr die Pressemitteilung zu: Tr\u00fcmper, S., Gaitzsch, B., Schneider, J.W., Ehling, B.C., Kleeberg, R., & R\u00f6\u00dfler, R. (2020): Late Palaeozoic red beds elucidate fluvial architectures preserving large woody debris in the seasonal tropics of central Pangaea. Sedimentology, 67(4): 1973-2012.","url":"https:\/\/doi.org\/10.1111\/sed.12692"}],"pn_alt_url":"https:\/\/www.palaeonavix.org\/index.php\/palaeo-illustration\/carboniferous-driftwood-shark","pn_highlight":true,"pn_produkte":null},"yoast_head":"\n