{"id":983,"date":"2013-10-21T15:07:24","date_gmt":"2013-10-21T19:07:24","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=983"},"modified":"2016-09-19T15:48:45","modified_gmt":"2016-09-19T19:48:45","slug":"flexicalymene","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/arthropoda\/trilobita\/phacopida\/calymenidae\/flexicalymene\/","title":{"rendered":"Flexicalymene<\/em>"},"content":{"rendered":"
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Classification<\/strong>
\nPhylum: Arthropoda<\/a>
\nClass: Trilobita<\/a>
\nOrder: Phacopida<\/a>
\nFamily: Calymenidae<\/a>
\nGenus: Flexicalymene<\/em> Shirley, 1936<\/p>\n

Cincinnatian Species: Flexicalymene meeki<\/em><\/a>, Flexicalymene granulosa<\/em><\/a><\/p>\n<\/div>\n<\/div>\n

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Geologic Range<\/strong>
\nMiddle Ordovician – Upper Ordovician<\/p>\n

Common Paleoecology<\/strong>
\nFlexicalymene<\/em> is an extinct genus of nektobenthic carnivores.<\/p>\n

Characteristics of the Genus<\/strong><\/p>\n

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  • The most common trilobite in the Upper Ordovician rocks of southwestern Ohio.<\/li>\n
  • Can be found throughout the Cincinnatian series.<\/li>\n
  • Commonly found enrolled in what is thought to be a defensive posture or a response to other stimuli.<\/li>\n
  • Thought to be due to rapid burial by oxygen deficient sediments, in which the trilobites would have stayed enrolled and died waiting for more favorable conditions.<\/li>\n
  • Can be found as complete specimens, but it is more common to find only pieces or parts of a trilobite.<\/li>\n
  • Glabella is plentiful and easy to find, distinguished by its clover-leaf shape.<\/li>\n
  • Rippled segments or thorax are easy to pick out, often showing up in matrix or among other fossils.<\/li>\n
  • Free cheeks, pygidium, and the distinctive \u201cthree-hump\u201d cross section of thorax that is a product of molting are all signature of Flexicalymene<\/em> fossils.<\/li>\n<\/ul>\n<\/div>\n
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    Geographic Occurrences<\/strong><\/p>\n

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