{"id":2566,"date":"2013-11-22T14:38:34","date_gmt":"2013-11-22T19:38:34","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=2566"},"modified":"2016-09-15T11:28:44","modified_gmt":"2016-09-15T15:28:44","slug":"trematis","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/lingulata\/lingulida\/trematidae\/trematis\/","title":{"rendered":"Trematis<\/em>"},"content":{"rendered":"
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Classification<\/strong>
\nPhylum: Brachiopoda<\/a>
\nClass: Lingulata<\/a>
\nOrder: Lingulida<\/a>
\nFamily: Trematidae<\/a>
\nGenus: Trematis<\/em> Sharpe, 1848
\nCincinnatian Species: Trematis millepunctata <\/a><\/em><\/p>\n<\/div>\n

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[accordions title=”” disabled=”false” active=”1″ autoheight=”false” collapsible=”true”] [accordion title=”Taxonomic Details”]
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Geologic Range<\/strong>
\nUpper Ordovician <\/p>\n

Common Paleoecology<\/strong>
\nTrematis<\/em> is an extinct genus of stationary, low-level, epifaunal suspension feeders.<\/p>\n

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

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  • Biconvex shell<\/li>\n
  • Circular to suboval shape<\/li>\n
  • Rounded to rectangular superficial pits variably arranged on the shell<\/li>\n
  • Subcentral apex of ventral valve<\/li>\n
  • Margins of pedicle notch straight or concave toward the midline<\/li>\n
  • Pedicle opening large and elongated<\/li>\n
  • Low dorsal median ridge<\/li>\n
  • Two bean-shaped, composite muscle scars on interior of dorsal valve<\/li>\n<\/ul>\n<\/div>\n
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    Geographic Occurrences<\/strong><\/p>\n

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