{"id":4161,"date":"2014-01-04T16:08:33","date_gmt":"2014-01-04T21:08:33","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=4161"},"modified":"2016-09-22T09:52:13","modified_gmt":"2016-09-22T13:52:13","slug":"dalmanella","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/rhynchonellata\/orthida\/dalmanellidae\/dalmanella\/","title":{"rendered":"Dalmanella<\/em>"},"content":{"rendered":"
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Classification<\/strong>
\nPhylum: Brachiopoda<\/a>
\nClass: Rhynchonellata<\/a>
\nOrder: Orthida<\/a>
\nFamily: Dalmanellidae<\/a>
\nGenus: Dalmanella<\/em> Hall & Clark, 1892
\nCincinnatian Species: Dalmanella emacerata<\/a><\/em><\/p>\n<\/div>\n

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Geologic Range<\/strong>
\nEarly Ordovician (Arenig) \u2013 Early Silurian (Llandovery)<\/p>\n

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

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

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  • Has a gently biconvex profile, and the oval to subcircular outline is truncated by a straight hinge line<\/li>\n
  • The brachial valve has a shallow sulcus<\/li>\n
  • Ribs radiate from the beaks toward the commissure<\/li>\n
  • Ventral interior with dental fossettes, cordate muscle scar, and divergent dental plates<\/li>\n<\/ul>\n<\/div>\n
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    Geographic Occurrences<\/strong><\/p>\n

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