{"id":4267,"date":"2014-01-06T15:36:58","date_gmt":"2014-01-06T20:36:58","guid":{"rendered":"http:\/\/www.ordovicianatlas.org\/?page_id=4267"},"modified":"2016-09-28T22:13:07","modified_gmt":"2016-09-29T02:13:07","slug":"richmondoceras","status":"publish","type":"page","link":"https:\/\/www.ordovicianatlas.org\/atlas\/mollusca\/cephalopoda\/orthocerida\/orthoceratidae\/richmondoceras\/","title":{"rendered":"Richmondoceras<\/em>"},"content":{"rendered":"
\n
\n
\"\"<\/div>\n
\n

Classification<\/strong>
\nPhylum: Mollusca<\/a>
\nClass: Cephalopoda<\/a>
\nOrder: Orthocerida<\/a>
\nFamily: Orthoceratidae<\/a>
\nGenus: Richmondoceras<\/em> Frey, 1995
\nCincinnatian Species: Richmondoceras brevicameratum<\/a><\/em><\/p>\n<\/div>\n

\"\"<\/div>\n<\/div>\n<\/div>\n
[accordions title=”” disabled=”false” active=”1″ autoheight=”false” collapsible=”true”] [accordion title=”Taxonomic Details”]
\n[\/accordion] [\/accordions]\n<\/div>\n
\n

Geologic Range<\/strong>
\nLate Ordovician <\/p>\n

Common Paleoecology<\/strong>
\nRichmondoceras<\/em> is an extinct genus of nektonic carnivores<\/p>\n

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

    \n
  • Medium to large, slender, gradually expanding orthoconic longicones<\/li>\n
  • Circular in section with straight, transverse sutures<\/li>\n
  • Body chamber long and tubular, at least one-fifth the total length of the shell<\/li>\n
  • Siphuncle segments highly compressed, the length of the phragmocone<\/li>\n
  • Siphuncle midventral in position to the length of the phragmocone<\/li>\n<\/ul>\n<\/div>\n
    \n<\/div>\n
    \n

    Geographic Occurrences<\/strong><\/p>\n

    <\/div>