{"id":4207,"date":"2014-01-05T14:26:48","date_gmt":"2014-01-05T19:26:48","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=4207"},"modified":"2016-09-15T11:23:07","modified_gmt":"2016-09-15T15:23:07","slug":"holtedahlina-sulcata","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/strophomenata\/strophomenida\/strophomenidae\/holtedahlina\/holtedahlina-sulcata\/","title":{"rendered":"<em>Holtedahlina sulcata<\/em>"},"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\/05\/Holtedahlina_sulcata_250pxW2.png?w=605&#038;ssl=1\" \/><\/div>\n<div style=\"float: left; width: 250px;\">\n<p align=\"left\"><strong>Classification<\/strong><br \/>\nPhylum: <a title=\"Brachiopoda\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/\">Brachiopoda<\/a><br \/>\nClass: <a title=\"Strophomenata\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/strophomenata\/\">Strophomenata<\/a><br \/>\nOrder: <a title=\"Strophomenida\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/strophomenata\/strophomenida\/\">Strophomenida<\/a><br \/>\nFamily: <a title=\"Strophomenidae\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/strophomenata\/strophomenida\/strophomenidae\/\">Strophomenidae<\/a><br \/>\nGenus: <em><a title=\"Holtedahlina\" href=\" https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/strophomenata\/strophomenida\/strophomenidae\/holtedahlina\/\">Holtedahlina<\/a><\/em><br \/>\nSpecies: <em>Holtedahlina sulcata<\/em> (de Verneuil, 1848)<\/p>\n<\/div>\n<div style=\"float: right; width: 250px;\"><img data-recalc-dims=\"1\" decoding=\"async\" alt=\"\" src=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/05\/H.sulcata_paleoeco.png?w=605&#038;ssl=1\" \/><\/div>\n<\/div>\n<\/div>\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;Taxonomic Details&#8221;]<br \/>\n<strong>Formerly<\/strong>: <em>Strophomena sulcata<\/em><br \/>\n[\/accordion] [\/accordions]<\/div>\n<div class=\"grid col-300\">\n<p><strong>Stratigraphic Occurrences<\/strong><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/01\/H.sulcata_strat.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-id=\"5419\"  src=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/01\/H.sulcata_strat.png?resize=300%2C273&#038;ssl=1\" alt=\"H.sulcata_strat\" width=\"300\" height=\"273\" class=\"alignleft size-medium wp-image-5419\" srcset=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/01\/H.sulcata_strat.png?resize=300%2C273&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/01\/H.sulcata_strat.png?resize=150%2C136&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/01\/H.sulcata_strat.png?w=725&amp;ssl=1 725w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>\n<\/div>\n<div class=\"grid col-100\">\n<\/div>\n<div class=\"grid col-575 fit\">\n<p><strong>Geographic Occurrences<\/strong><\/p>\n<pre><code><div class=\"leaflet-map WPLeafletMap\" style=\"height:250px; width:575px;\"><\/div><script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMapShortcode() {\/*<script>*\/\nvar baseUrl = atob('Ly97c30udGlsZS5vcGVuc3RyZWV0bWFwLm9yZy97en0ve3h9L3t5fS5wbmc=');\nvar base = (!baseUrl && window.MQ) ?\n    window.MQ.mapLayer() : L.tileLayer(baseUrl,\n        L.Util.extend({}, {\n            detectRetina: 0,\n        },\n        {\"subdomains\":\"abc\",\"noWrap\":false,\"maxZoom\":13}        )\n    );\n    var options = L.Util.extend({}, {\n        layers: [base],\n        attributionControl: false\n    },\n    {\"zoomControl\":true,\"scrollWheelZoom\":false,\"doubleClickZoom\":false,\"fitBounds\":false,\"minZoom\":0,\"maxZoom\":13,\"maxBounds\":null,\"attribution\":\"<a href=\\\"http:\\\/\\\/leafletjs.com\\\" title=\\\"A JS library for interactive maps\\\">Leaflet<\\\/a>; \\r\\n\\u00a9 <a href=\\\"http:\\\/\\\/www.openstreetmap.org\\\/copyright\\\">OpenStreetMap<\\\/a> contributors\"},\n    {});\nwindow.WPLeafletMapPlugin.createMap(options).setView([39,-84.5],7);});<\/script><\/code><\/pre>\n<pre><code>Map point data provided by <a href=\"https:\/\/www.idigbio.org\/\">iDigBio.<\/a><\/code><\/pre>\n<\/div>\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;Stratigraphic Description&#8221;]<br \/>\nSequences (Formations)<\/p>\n<ul>\n<li>C5 Sequence (Lower Whitewater, Liberty, Waynesville)<\/li>\n<\/ul>\n<p>[\/accordion] [\/accordions]<\/p><\/div>\n<div><strong>Identification in Hand Sample<\/strong><\/p>\n<div align=\"left\">\n<ul>\n<li>Medium sized<\/li>\n<li>Gently biconvex<\/li>\n<li>Deep sulcus in the ventral valve with corresponding fold in the dorsal valve<\/li>\n<li>Coarser striations than any <em>Strophomena<\/em> in the Richmond<\/li>\n<\/ul>\n<\/div>\n<div align=\"center\">\n<div style=\"width:800px;\">\n<div>\n<img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.ordovicianatlas.org\/wp-content\/uploads\/2014\/05\/Holtedahlina_sulcata_800px2.png?w=605&#038;ssl=1\">\n<\/div>\n<p align=\"left\" style=\"margin-top:0; font-size:75%;\"><em>Holtedahlina sulcata<\/em> from Whitewater Formation of Unknown County, (OUIP 1935) <\/p>\n<\/div>\n<\/div>\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 Description&#8221;]<br \/>\n<em>Davis (1998)<\/em>: <\/p>\n<ul>\n<li>Articulate brachiopod. Differs from similar forms by the deep sulcus in the pedicle valve. Waynesville to Elkhorn.<\/li>\n<\/ul>\n<p><em>Pope (1982)<\/em>:<\/p>\n<ul>\n<li><em>Furcitella<\/em> and <em>Holtedahlina<\/em> are most clearly separated by the presence of a promenent fold in adult valves of <em>Holtedahlina<\/em>. Heretofore, <em>Furcitella<\/em> has been distinguished principally by bifurcation of the medial ridge of the dorsal valve, but this character also occurs in immature specimens of <em>H.sulcata<\/em> (de Verneuil), type species of <em>Holtedahlina<\/em>. The bifid ends of the medial ridge of adult specimens of <em>H.sulcata<\/em> are enlarged to form rounded lobes (pl. 7, figs. 11-12). The dorsal trans-muscle ridges of <em>H.suolcata<\/em> (pl. 7, fig. 12) are more pronounced than those of <em>Furcitella<\/em>; the adsence of well-defined trans-muscle ridges in the specimen of <em>H.sulcata<\/em> illustrated by Cooper (1956, pl. 299, B, fig. 8; repeated by Williams, 1965, p. H386, fig. 247-1b) is anomalous. <\/li>\n<\/ul>\n<p><em>Richards &#038; Bambach (1975)<\/em>:<\/p>\n<ul>\n<li>One life assemblage of <em>Holtedahlina sulcata<\/em> is a nest of individuals several layers deep, with later generations apparently settling and growing on top of earlier ones (Richards, 1972).  In this case, settling was continuous, or at least recurrent.  In the case of <em>Holtedahlina sulcata<\/em> most of the specimens were still in their vertical life position in a shaley matrix with the beaks down and the closed shells filled with sparry calcite.  <em>Holtedahlina sulcata<\/em> is the only strophomenid for which reliable population data could be obtained.<\/li>\n<\/ul>\n<p><em>Richards (1972)<\/em>:<\/p>\n<ul>\n<li><em>Holtedahlina sulcata<\/em> is unlike the other Richmondian strophomenids in morphology and ecology. It is a medium sized, gently biconvex, parvicostellate form with a broad sinus and fold. A pseudodeltidium leaves a small pedical opening at the beak. <em>H. sulcata<\/em> occurs as a common fossil in the Whitewater Formation, and is found in some abundance at restricted horizons in the Tanner&#8217;s Creek Formation. In-formation about the life habits of <em>H. sulcata<\/em> was derived from the study of a life assemblage found at Richmond, Indiana.<\/li>\n<\/ul>\n<p><em>McFarlan (1931)<\/em>:<\/p>\n<ul>\n<li>Shell biconvex with fold on the brachial (dorsal) and sinus on the pedicle (ventral) valve, semi-circular, with hinge line about equal to greatest width of the shell. Muscular area of the pedical valve about three-tenths of the width of the valve, bounded posteriorly and laterally by a sharply elevated border which disappears anteriorly. Width, 18-23 mm, length 0.8 width. Striae about three in 2 mm. <\/li>\n<li><em>S. sulcata<\/em> has a vertical range from the Clarksville Member (of Waynesville Formation) to the top of the Whitewater Formation. In the Liberty-Whitewater it is represented in Kentucky as far south as Madison and Marion counties. In the Waynesville it is known from the Clarksville in Lewis County.<\/li>\n<\/ul>\n<p><em>Foerste (1924)<\/em>: <\/p>\n<ul>\n<li>Shell small; coarser striations than any other <em>Strophomena<\/em> in the Richmond. Median part of the pedicle (ventral) valve depressed into a broad sinus anteriorly, corresponding part of brachial (dorsal) valve raised into a low, median fold. <\/li>\n<li><em>Locality and Horizon<\/em>: Richmond formation from Clarksville division of the Waynesville to the top of the Whitewater in Kentucky. Its southernmost range known is Dismukes, Sumner County, Tennessee, in the Waynesville. At Stonington, Michigan, in the Waynesville; in Canada, but only in the Meaford, on Manitoulin island, at Kagawong, and at several localities south of Little Current. In the lower, Lorraine-like phase of the Waynesville at Streetsville. Related forms occur at Vars, and on Snake island.<\/li>\n<\/ul>\n<p>[\/accordion] [\/accordions]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Classification Phylum: Brachiopoda Class: Strophomenata Order: Strophomenida Family: Strophomenidae Genus: Holtedahlina Species: Holtedahlina sulcata (de Verneuil, 1848) [accordions title=&#8221;&#8221; disabled=&#8221;false&#8221; active=&#8221;1&#8243; autoheight=&#8221;false&#8221; collapsible=&#8221;true&#8221;] [accordion title=&#8221;Taxonomic Details&#8221;] Formerly: Strophomena sulcata [\/accordion] [\/accordions] Stratigraphic Occurrences Geographic Occurrences Map point data provided by &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"more-link\" href=\"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/strophomenata\/strophomenida\/strophomenidae\/holtedahlina\/holtedahlina-sulcata\/\"> <span class=\"screen-reader-text\"><em>Holtedahlina sulcata<\/em><\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":4203,"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-4207","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P3T22h-15R","_links":{"self":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4207","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=4207"}],"version-history":[{"count":10,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4207\/revisions"}],"predecessor-version":[{"id":13457,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4207\/revisions\/13457"}],"up":[{"embeddable":true,"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/pages\/4203"}],"wp:attachment":[{"href":"https:\/\/www.ordovicianatlas.org\/wp-json\/wp\/v2\/media?parent=4207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}