{"id":4706,"date":"2014-01-11T15:35:57","date_gmt":"2014-01-11T20:35:57","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=4706"},"modified":"2015-02-22T17:13:06","modified_gmt":"2015-02-22T22:13:06","slug":"trigonioda","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/bivalvia\/trigonioda\/","title":{"rendered":"Trigonoida"},"content":{"rendered":"<div align=\"left\">\n<div style=\"height: 250px;\" align=\"center\">\n<div style=\"border-right: 20px solid white; float: left; width: 250px;\"><img data-recalc-dims=\"1\" decoding=\"async\" alt=\"\" src=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/03\/Lyrodesma_major_250pxW.png?w=605&#038;ssl=1\" \/><\/div>\n<div style=\"float: left; width: 600px;\">\n<p align=\"left\"><strong>Classification<\/strong><br \/>\nPhylum: <a title=\"Mollusca\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/\">Mollusca<\/a><br \/>\nClass: <a title=\"Bivalvia\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/bivalvia\/\">Bivalvia<\/a><br \/>\nOrder: Trigonoida Dall, 1889<br \/>\nCincinnatian Families: <a title=\"Lyrodesmatidae\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/bivalvia\/trigonioda\/lyrodesmatidae\/\">Lyrodesmatidae<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>Geologic Range<\/strong><br \/>\n?Middle Ordovician, Devonian &#8211; Recent<\/p>\n<p><strong>Common Paleoecology<\/strong><br \/>\nTrigonioda is an extant order or facultatively mobile infaunal suspension feeders<\/p>\n<\/div>\n<p><strong>Characteristics of the Order<\/strong><\/p>\n<ul>\n<li>Shell trigonal, ovate, or rhomboidal in shape<\/li>\n<li>Surface smooth or ornamented<\/li>\n<li>Hinge teeth radiating from the beak; left valve with strong median tooth &#038; right valve typically with two main teeth<\/li>\n<li>Small adductor scars found close to hinge teeth<\/li>\n<\/ul>\n<div style=\"clear: both;\">[accordions title=&#8221;&#8221; disabled=&#8221;false&#8221; active=&#8221;1&#8243; autoheight=&#8221;false&#8221; collapsible=&#8221;true&#8221;] [accordion title=&#8221;Published Descriptions&#8221;]<br \/>\n<em>Treatise on Invertebrate Paleontology, Part N, Mollusca 6(1 of 3) (1969)<\/em>:<\/p>\n<ul>\n<li>(Characters of superfamily Trigoniacea) Shell equivalve; trigonal, ovate or rhomboidal; posteriorly truncate or subtruncate; posterior slope carinate or subcarinate; surface smooth or ornamented; ligament external, short, opisthodetic. Hinge teeth radiating from beak; left valve typically with strong median tooth and weaker one on each side; right valve typically with two main teeth received in recesses between those of left; additional and weaker teeth may be present, however, or some of teeth mentioned may be obsolete; adductor scars small, placed close to hinge teeth, anterior scar in each valve bordered on its inner side in many forms by buttress may border posterior adductor scar; pallial line entire except in Scaphellinidae; ostracum nacreous.<\/li>\n<\/ul>\n<p>[\/accordion] [\/accordions]<\/p>\n<div align=\"center\">\n<div style=\"height: 300px; width: 800px;\" align=\"center\">\n<div style=\"border-right: 15px solid white; float: left; width: 250px;\">\n<p align=\"center\">Lyrodesmatidae<\/p>\n<p><a href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/bivalvia\/trigonioda\/lyrodesmatidae\/\"> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" alt=\"\" src=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/08\/Lyrodesma_major_250pxB.png?resize=250%2C250&#038;ssl=1\" width=\"250\" height=\"250\" \/><br \/>\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Classification Phylum: Mollusca Class: Bivalvia Order: Trigonoida Dall, 1889 Cincinnatian Families: Lyrodesmatidae Geologic Range ?Middle Ordovician, Devonian &#8211; Recent Common Paleoecology Trigonioda is an extant order or facultatively mobile infaunal suspension feeders Characteristics of the Order Shell trigonal, ovate, or &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"more-link\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/bivalvia\/trigonioda\/\"> <span class=\"screen-reader-text\">Trigonoida<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2721,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"full-width-page.php","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"class_list":["post-4706","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P3T22h-1dU","_links":{"self":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/comments?post=4706"}],"version-history":[{"count":8,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4706\/revisions"}],"predecessor-version":[{"id":11320,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4706\/revisions\/11320"}],"up":[{"embeddable":true,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/2721"}],"wp:attachment":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/media?parent=4706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}