{"id":4375,"date":"2014-01-07T17:35:44","date_gmt":"2014-01-07T22:35:44","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=4375"},"modified":"2016-09-07T13:34:14","modified_gmt":"2016-09-07T17:34:14","slug":"holopeidae","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/gastropoda\/euomphalina\/holopeidae\/","title":{"rendered":"Holopeidae"},"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\" src=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/08\/holopea-obliqua-250-white.png?w=605&#038;ssl=1\" alt=\"\" \/><\/div>\n<div style=\"float: left; width: 500px; border-left: 50px;\">\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=\"Gastropoda\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/gastropoda\/\">Gastropoda<\/a><br \/>\nOrder: <a title=\"Euomphalina\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/gastropoda\/euomphalina\/\">Euomphalina<\/a><br \/>\nFamily: Holopeidae Wenz, 1938<br \/>\nCincinnatian Genera: <em><a title=\"Cyclora\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/gastropoda\/euomphalina\/holopeidae\/cyclora\/\">Cyclora<\/a><\/em>, <em><a title=\"Holopea\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/gastropoda\/euomphalina\/holopeidae\/holopea\/\">Holopea<\/a><\/em><\/p>\n<\/div>\n<\/div>\n<p><strong>Geologic Range<\/strong><br \/>\nLate Ordovician &#8211; Middle Permian<\/p>\n<p><strong>Common Paleoecology<\/strong><br \/>\nHolopeidae is an extinct family of stationary epifaunal suspension feeders<\/p>\n<p><strong>Description of the Family<\/strong><\/p>\n<ul>\n<li>U-shaped sinus<\/li>\n<li>Turbiniform<\/li>\n<li>With or without spiral ornament<\/li>\n<li>Narrow umbilicus<\/li>\n<\/ul>\n<div style=\"clear: both;\">\n<p>[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;]<\/p>\n<p><em>Popov et al. (2007)<\/em>:<\/p>\n<ul>\n<li>Wagner (2002) emphasized a primitively expressed U-shaped sinus and simple growth lines for his &#8220;Holopeines&#8221; subclade within a &#8220;Raphistomatid&#8221; clade (informal notation, as indicated by quotes; see Wagner 2002; 16). Traditionally, a number of Paleozoic anisostrophically coiled gastropods showing these characters would be classified within the Late Cambrian to Early Ordovician Sinuopeidae Wenz, 1938. Many of these genera are now placed in the family Holopeidae Wenz, 1938 (e.g., <em> Raphistomina<\/em> Ulrich and Scofield 1897; <em>Pachystrophia<\/em> Perner, 1903; <em>Sinutropis<\/em> Perner, 1903; <em>Umbospira<\/em> Perner, 1903; <em>Holopea<\/em> Hall, 1847), and all are younger than the late Arenigian (Wagner 2002). The genus discussed here, <em>Ptychonema<\/em> Perner, 1903, is placed in Holopeidae by association with morphologically similar mid-Ordovician to Silurian genera with a U-shaped sinus; Horny (1997) placed it in Eotomariidae Wenz, 1938.<\/li>\n<\/ul>\n<p><em>Treatise on Invertebrate Paleontology, Part I, Mollusca 1 (1960)<\/em>:<\/p>\n<ul>\n<li>Turbiniform, with or without spiral ornament; usually with narrow umbilicus.<\/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\"><em>Holopea<\/em><\/p>\n<p><a href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/gastropoda\/euomphalina\/holopeidae\/holopea\/\"> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/08\/holopea-obliqua-250-black.png?resize=250%2C250&#038;ssl=1\" alt=\"\" width=\"250\" height=\"250\" \/><br \/>\n<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Classification Phylum: Mollusca Class: Gastropoda Order: Euomphalina Family: Holopeidae Wenz, 1938 Cincinnatian Genera: Cyclora, Holopea Geologic Range Late Ordovician &#8211; Middle Permian Common Paleoecology Holopeidae is an extinct family of stationary epifaunal suspension feeders Description of the Family U-shaped sinus &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"more-link\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/gastropoda\/euomphalina\/holopeidae\/\"> <span class=\"screen-reader-text\">Holopeidae<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2701,"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-4375","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P3T22h-18z","_links":{"self":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4375","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=4375"}],"version-history":[{"count":10,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4375\/revisions"}],"predecessor-version":[{"id":13355,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4375\/revisions\/13355"}],"up":[{"embeddable":true,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/2701"}],"wp:attachment":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/media?parent=4375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}