{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Oses GL"],"funding":["FAPESP","CNPq","Natural Environment Research Council"],"pagination":["105676"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9763863"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["25(12)"],"pubmed_abstract":["<i>Corumbella</i> is a terminal Ediacaran tubular, benthic fossil of debated morphology, composition, and biological affinity. Here, we show that <i>Corumbella</i> had a biomineralized skeleton, with a bilayered construction of imbricated calcareous plates and rings (sclerites) yielding a cataphract organization, that enhanced flexibility. Each sclerite likely possessed a laminar microfabric with consistent crystallographic orientation, within an organic matrix. Original aragonitic mineralogy is supported by relict aragonite and elevated Sr (mean = ca. 11,800 ppm in central parts of sclerites). In sum, the presence of a polarisation axis, sclerites with a laminar microfabric, and a cataphract skeletal organization reminiscent of early Cambrian taxa, are all consistent with, but not necessa"],"journal":["iScience"],"pubmed_title":["Ediacaran <i>Corumbella</i> has a cataphract calcareous skeleton with controlled biomineralization."],"pmcid":["PMC9763863"],"funding_grant_id":["NE/T008458/1"],"pubmed_authors":["Romero GR","Herzen J","Stampar SN","Alves Forancelli Pacheco ML","Bidola P","Wood R","Pfeiffer F","Oses GL","Evangelista Martins Prado GM"],"additional_accession":[]},"is_claimable":false,"name":"Ediacaran <i>Corumbella</i> has a cataphract calcareous skeleton with controlled biomineralization.","description":"<i>Corumbella</i> is a terminal Ediacaran tubular, benthic fossil of debated morphology, composition, and biological affinity. Here, we show that <i>Corumbella</i> had a biomineralized skeleton, with a bilayered construction of imbricated calcareous plates and rings (sclerites) yielding a cataphract organization, that enhanced flexibility. Each sclerite likely possessed a laminar microfabric with consistent crystallographic orientation, within an organic matrix. Original aragonitic mineralogy is supported by relict aragonite and elevated Sr (mean = ca. 11,800 ppm in central parts of sclerites). In sum, the presence of a polarisation axis, sclerites with a laminar microfabric, and a cataphract skeletal organization reminiscent of early Cambrian taxa, are all consistent with, but not necessa","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Dec","modification":"2026-05-27T19:14:21.466Z","creation":"2025-02-19T03:24:24.93Z"},"accession":"S-EPMC9763863","cross_references":{"pubmed":["36561886"],"doi":["10.1016/j.isci.2022.105676"]}}