{"id":3843,"date":"2026-07-29T17:49:48","date_gmt":"2026-07-29T15:49:48","guid":{"rendered":"https:\/\/palaeonavix.bestmarke.de\/portfolio\/marine-invertebrates-sponges\/"},"modified":"2026-07-29T17:49:48","modified_gmt":"2026-07-29T15:49:48","slug":"marine-invertebrates-sponges","status":"publish","type":"avada_portfolio","link":"https:\/\/palaeonavix.bestmarke.de\/en\/portfolio\/marine-invertebrates-sponges\/","title":{"rendered":"Marine invertebrates: Sponge diversity"},"content":{"rendered":"<p>Porifera represent the most primitive stage of multicellular animals. They have a low degree of cell diversification, show a sessile, filtering lifestyle, but persist to show impressive diversity and disparity from the uppermost Precambrian till today. True sponges (Demospongiae, common sponges) comprise the here shown round forms, with <em>Siphonia<\/em> (yellow) from the Cretaceous, as well as <em>Astylospongia<\/em> (orange) from the Cambrian and Ordovician. Glass sponges (Hexactinellida, containing siliceous spicules) count <em>Coeloptychium<\/em> (mushroom-shaped) and <em>Ventriculites <\/em>(blut) from the Cretaceous.<\/p>\n<p>On the lower left, there is a stromatopore, likely also some kind of sponge, but not certain. Stromatopores were important from the Ordovician to the Devonian, even forming reefs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Digital plate on demosponges, glass sponges and stromatoporoids, for academic teaching.<\/p>\n","protected":false},"author":1,"featured_media":3841,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"pn_jahr":"2024","pn_taxon":"Porifera; Siphonia; Astylospongia; Coeloptychium; Ventriculites; Stromatoporoidea","pn_auftraggeber":"","pn_ausstellung":"","pn_masse":"","pn_quelle_url":"","pn_lizenz":"\u00a9 Palaeonavix","pn_alt_url":"https:\/\/www.palaeonavix.org\/index.php\/palaeo-illustration\/marine-invertebrates-sponges","pn_mitwirkende":"","footnotes":""},"portfolio_category":[158],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-3843","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-palaeo-illustration"],"acf":{"pn_jahr":"2024","pn_taxon":"Porifera; Siphonia; Astylospongia; Coeloptychium; Ventriculites; Stromatoporoidea","pn_auftraggeber":"","pn_ausstellung":"","pn_masse":"","pn_quelle_url":"","pn_lizenz":"\u00a9 Palaeonavix","pn_mitwirkende":"","pn_verwandte":null,"pn_alt_url":"https:\/\/www.palaeonavix.org\/index.php\/palaeo-illustration\/marine-invertebrates-sponges"},"_links":{"self":[{"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/avada_portfolio\/3843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/avada_portfolio"}],"about":[{"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/types\/avada_portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/comments?post=3843"}],"version-history":[{"count":0,"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/avada_portfolio\/3843\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/media\/3841"}],"wp:attachment":[{"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/media?parent=3843"}],"wp:term":[{"taxonomy":"portfolio_category","embeddable":true,"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/portfolio_category?post=3843"},{"taxonomy":"portfolio_skills","embeddable":true,"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/portfolio_skills?post=3843"},{"taxonomy":"portfolio_tags","embeddable":true,"href":"https:\/\/palaeonavix.bestmarke.de\/en\/wp-json\/wp\/v2\/portfolio_tags?post=3843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}