{"id":4535,"date":"2022-05-30T12:22:08","date_gmt":"2022-05-30T10:22:08","guid":{"rendered":"https:\/\/muzeumewolucji.pl\/?p=4535"},"modified":"2022-05-30T12:24:32","modified_gmt":"2022-05-30T10:24:32","slug":"a-new-look-at-archaeocyaths","status":"publish","type":"post","link":"https:\/\/muzeumewolucji.pl\/?p=4535&lang=en","title":{"rendered":"A new look at archaeocyaths"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"4535\" class=\"elementor elementor-4535\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-77471bbd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"77471bbd\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18250ddb\" data-id=\"18250ddb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4bc2985 elementor-widget elementor-widget-heading\" data-id=\"4bc2985\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">A new look at archaeocyaths<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a52e053 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a52e053\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-191fd44\" data-id=\"191fd44\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-da3df46 elementor-widget elementor-widget-text-editor\" data-id=\"da3df46\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><img fetchpriority=\"high\" decoding=\"async\" data-recalc-dims=\"1\" class=\" wp-image-4530 alignright\" src=\"https:\/\/i0.wp.com\/muzeumewolucji.pl\/wp-content\/uploads\/2022\/05\/bkremer.jpg?resize=477%2C248&#038;ssl=1\" alt=\"\" width=\"477\" height=\"248\" srcset=\"https:\/\/i0.wp.com\/muzeumewolucji.pl\/wp-content\/uploads\/2022\/05\/bkremer.jpg?w=1664&amp;ssl=1 1664w, https:\/\/i0.wp.com\/muzeumewolucji.pl\/wp-content\/uploads\/2022\/05\/bkremer.jpg?resize=300%2C156&amp;ssl=1 300w, https:\/\/i0.wp.com\/muzeumewolucji.pl\/wp-content\/uploads\/2022\/05\/bkremer.jpg?resize=1024%2C534&amp;ssl=1 1024w, https:\/\/i0.wp.com\/muzeumewolucji.pl\/wp-content\/uploads\/2022\/05\/bkremer.jpg?resize=768%2C401&amp;ssl=1 768w, https:\/\/i0.wp.com\/muzeumewolucji.pl\/wp-content\/uploads\/2022\/05\/bkremer.jpg?resize=1536%2C801&amp;ssl=1 1536w, https:\/\/i0.wp.com\/muzeumewolucji.pl\/wp-content\/uploads\/2022\/05\/bkremer.jpg?w=1600&amp;ssl=1 1600w\" sizes=\"(max-width: 477px) 100vw, 477px\" \/>An alternative explanation of the systematic position of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Archaeocyatha\" target=\"_blank\" rel=\"noopener\">archaeocyaths<\/a>, Cambrian calcareous fossils interpreted for over 30 years mostly as <a href=\"https:\/\/en.wikipedia.org\/wiki\/Sponge\" target=\"_blank\" rel=\"noopener\">sponges (Porifera)<\/a>, herein treated as closely related to modern <a href=\"https:\/\/en.wikipedia.org\/wiki\/Coenocyte\" target=\"_blank\" rel=\"noopener\">siphonous<\/a> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Green_algae\" target=\"_blank\" rel=\"noopener\">green algae<\/a>, especially representatives of the genus <a href=\"https:\/\/en.wikipedia.org\/wiki\/Codium\" target=\"_blank\" rel=\"noopener\"><i>Codium<\/i><\/a> (<i>Bryopsidales, Chlorophyta<\/i>). The basis for this conclusion was the demonstration, grounded on samples from NE Siberia, that the skeleton of archaeocyaths was not an indigenous product of the siphonous algae, but the product of calcified microorganisms, close to modern <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cyanobacteria\" target=\"_blank\" rel=\"noopener\">cyanobacteria<\/a> (<i>Chroococcales<\/i>), that overgrew the algae during their lifetime. The calcification of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cyanobacteria\" target=\"_blank\" rel=\"noopener\">cyanobacterial<\/a> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Epibiont\" target=\"_blank\" rel=\"noopener\">epibiontic<\/a> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Biofilm\" target=\"_blank\" rel=\"noopener\">biofilms<\/a> on siphonous green algae thalli evidences high saturation of the Cambrian sea with calcium carbonate (&#8222;calcium stress&#8221;), which should be considered one of the main causes of the mass formation of first calcareous skeletons at that time. This is an aspect of the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cambrian_explosion\" target=\"_blank\" rel=\"noopener\">Cambrian explosion<\/a>, one of the major events in the history of life.<\/p><p>NCN 2015\/17 \/ B \/ ST10 \/ 03340, leader prof. dr. hab. J\u00f3zef Ka\u017amierczak.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-79719e2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"79719e2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d714991\" data-id=\"d714991\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7a599f6 elementor-widget elementor-widget-text-editor\" data-id=\"7a599f6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><b>PUBLICATION<\/b> \u2014 <a href=\"http:\/\/biominerals.paleo.pan.pl\/pracownicy\/kazmierczak\/jozef_kazmierczak.html\" target=\"_blank\" rel=\"noopener\">Ka\u017amierczak J.<\/a> &amp; <a href=\"http:\/\/biominerals.paleo.pan.pl\/pracownicy\/kremer\/barbara_kremer.html\" target=\"_blank\" rel=\"noopener\">Kremer B.<\/a> 2022. Archaeocyaths: alternatively explained as consortia of siphonous algae and cyanobacteria-like microbes in shallow Cambrian seas. <a href=\"https:\/\/doi.org\/10.1016\/j.palwor.2021.08.003\" target=\"_blank\" rel=\"noopener\"><i>Palaeoworld<\/i> (Elsevier), 31, p. 218\u2013238<\/a>. doi:10.1016\/j.palwor.2021.08.003<\/p><div align=\"justify\">\u00a0<\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7b3b897 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b3b897\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-838499f\" data-id=\"838499f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-45798c2 elementor-widget elementor-widget-spacer\" data-id=\"45798c2\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Are  archaeocyaths,so far classified as sponges, algae?<\/p>\n","protected":false},"author":3,"featured_media":4530,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[93],"tags":[],"class_list":["post-4535","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sc_news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - 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