{"id":4183,"date":"2014-01-04T17:23:34","date_gmt":"2014-01-04T22:23:34","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=4183"},"modified":"2016-10-10T12:21:01","modified_gmt":"2016-10-10T16:21:01","slug":"plectorthis","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/rhynchonellata\/orthida\/plectorthidae\/plectorthis\/","title":{"rendered":"Plectorthis<\/em>"},"content":{"rendered":"
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Classification<\/strong>
\nPhylum: Brachiopoda<\/a>
\nClass: Rhynchonellata<\/a>
\nOrder: Orthida<\/a>
\nFamily: Plectorthidae<\/a>
\nGenus: Plectorthis<\/em> Hall & Clarke (1892)
\nCincinnatian Species: Plectorthis fissicosta<\/a><\/em>, Plectorthis plicatella<\/a><\/em> <\/p>\n<\/div>\n

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[accordions title=”” disabled=”false” active=”1″ autoheight=”false” collapsible=”true”] [accordion title=”Taxonomic Details”]
\nOriginally <\/strong> Orthis<\/em> Hall (1847) <\/p>\n

[\/accordion] [\/accordions]\n<\/p><\/div>\n

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Geologic Range<\/strong>
\nLate Ordovician (Caradoc \u2013 Ashgill)<\/p>\n

Common Paleoecology<\/strong>
\nPlectorthis<\/em> is an extinct genus of stationary epifaunal suspension feeders<\/p>\n

Identification in Hand Sample<\/strong>:<\/p>\n

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  • Shells have distinct plano-convex contour, gently biconvex profile<\/li>\n
  • Anterior commissure faintly sulcate to uniplicate <\/li>\n
  • Ventral interarea short<\/li>\n
  • Ventral muscle field subcordate with linear adductor track contained by subcrescentic diductor scars<\/li>\n
  • Cardinal process a thick, rounded ridge<\/li>\n<\/ul>\n<\/div>\n
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    Geographic Occurrences<\/strong><\/p>\n

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