{"id":2632,"date":"2013-11-25T08:48:29","date_gmt":"2013-11-25T13:48:29","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=2632"},"modified":"2016-10-10T12:51:32","modified_gmt":"2016-10-10T16:51:32","slug":"rhynchotrema","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/brachiopoda\/rhynchonellata\/rhynchonellida\/rhynchotrematidae\/rhynchotrema\/","title":{"rendered":"Rhynchotrema<\/em>"},"content":{"rendered":"
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Classification<\/strong>
\nPhylum: Brachiopoda<\/a>
\nClass: Rhynchonellata<\/a>
\nOrder: Rhynchonellida<\/a>
\nFamily: Rhynchotrematidae<\/a>
\nGenus: Rhynchotrema<\/em> Hall, 1847
\nCincinnatian Species: Rhynchotrema dentata <\/a><\/em><\/p>\n<\/div>\n

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[accordions title=”” disabled=”false” active=”1″ autoheight=”false” collapsible=”true”] [accordion title=”Taxonomic Details”]
\nType species<\/strong>: Atrypa increbescens<\/em> Hall, 1847 (Jin & Zhan, 2001)
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Geologic Range<\/strong>
\nLate Ordovician – Middle Silurian<\/p>\n

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

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

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  • Large, often semicircular <\/li>\n
  • Equibiconvex profile <\/li>\n
  • Beak can be suberect or curling in<\/li>\n
  • Dorsal fold and ventral sulcus arising at the umbones<\/li>\n
  • Uniplicate Commisure<\/li>\n
  • Ribs radiate from the Umbones<\/li>\n
  • Small pedicle opening<\/li>\n<\/ul>\n<\/div>\n
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    Geographic Occurrences<\/strong><\/p>\n

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