{"id":3382,"date":"2014-10-31T12:22:18","date_gmt":"2014-10-31T12:22:18","guid":{"rendered":"https:\/\/www.palaeontologyonline.com\/?page_id=3382"},"modified":"2015-10-25T13:34:25","modified_gmt":"2015-10-25T13:34:25","slug":"echinoderms","status":"publish","type":"page","link":"https:\/\/www.palaeontologyonline.com\/?page_id=3382","title":{"rendered":"Echinoderms"},"content":{"rendered":"<p>A group of marine organisms with a calcium carbonate (CaCO<sub>3<\/sub>) skeleton of stereom, and a water vascular system used for respiration, locomotion and consumption and removal of food and waste. All living groups of echinoderms display unique five-fold symmetry, but many fossil taxa do not. The name echinoderm comes from the ancient Greek <em>echinos<\/em>, or hedgehog, and <em>derma<\/em>, which means skin. This is because many echinoderms have spines. Echinoderms first appear in the fossil record in the Cambrian period around 520 million years ago.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A group of marine organisms with a calcium carbonate (CaCO3) skeleton of stereom, and a water vascular system used for respiration, locomotion and consumption and removal of food and waste. All living groups of echinoderms display unique five-fold symmetry, but many fossil taxa do not. The name echinoderm comes from the ancient Greek echinos, or [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":348,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3382","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=\/wp\/v2\/pages\/3382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3382"}],"version-history":[{"count":2,"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=\/wp\/v2\/pages\/3382\/revisions"}],"predecessor-version":[{"id":3791,"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=\/wp\/v2\/pages\/3382\/revisions\/3791"}],"up":[{"embeddable":true,"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=\/wp\/v2\/pages\/348"}],"wp:attachment":[{"href":"https:\/\/www.palaeontologyonline.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}