{"id":4577,"date":"2014-01-09T17:15:42","date_gmt":"2014-01-09T22:15:42","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=4577"},"modified":"2016-09-26T22:48:41","modified_gmt":"2016-09-27T02:48:41","slug":"glyptocrinus","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/echinodermata\/crinoidea\/monobathrida\/glyptocrinidae\/glyptocrinus\/","title":{"rendered":"Glyptocrinus<\/em>"},"content":{"rendered":"
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Classification<\/strong>
\nPhylum: Echinodermata<\/a>
\nClass:Crinoidea<\/a>
\nOrder: Monobathrida<\/a>
\nFamily: Glyptocrinidae<\/a>
\nGenus: Glyptocrinus<\/em> Hall, 1847
\nCincinnatian Species: Glyptocrinus decadactylus<\/a><\/em>, Glyptocrinus fornshelli<\/a><\/em> <\/p>\n<\/div>\n

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

Common Paleoecology<\/strong>
\nGlyptocrinus<\/em> is an extinct genus of stationary upper-level epifaunal suspension feeders<\/p>\n

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

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  • Distinguished by rays that branch twice on the calyx, such that twenty arms exit from the calyx<\/li>\n
  • Arms 20, simple or branching once, uniserial<\/li>\n
  • Basals numbering 5<\/li>\n
  • Primary radials, three by five; secondary radials, one or more by ten<\/li>\n<\/ul>\n<\/div>\n
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    Geographic Occurrences<\/strong><\/p>\n

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