Ectenolites

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(Deletied redundant Ectenolites above Systematics, linked clarkocras)
 
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'''''Ectenolites'''''<br/>
 
<u>Systematic Paleontology</u><br/>
<u>Systematic Paleontology</u><br/>
Order: [[Ellesmerocerida]] <br/>
Order: [[Ellesmerocerida]] <br/>
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'''''Ectenolites'''''  is the name given for very small, very slender, essentially tubular compressed shells  belonging to the Ellesmeroceratidae. Some are orthoconic, some show endogastric curvature over a considerable length of phragmocone (Flower 1964). Living chambers are short in some, long in others.  The siphuncle is ventro-marginal and narrow, may contain diaphragms.
'''''Ectenolites'''''  is the name given for very small, very slender, essentially tubular compressed shells  belonging to the Ellesmeroceratidae. Some are orthoconic, some show endogastric curvature over a considerable length of phragmocone (Flower 1964). Living chambers are short in some, long in others.  The siphuncle is ventro-marginal and narrow, may contain diaphragms.
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''Ectenolites'' is one of two ellesmeroceratid genera know to have persisted from the Late [[Cambrian]] into the Early [[Ordovician]].  The other is ''Clarkeoceras''.  Flower, 1964, named two species, ''Ectenolies primus'' and E''ctenolites cf primus'' from the Trempealeauan (uU Camb) San Saba Limestone of central Texas; at that time the only known Upper Cambrian member(s) of the genus. Other species are confined to the Lower Ordovician Gasconadian.
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''Ectenolites'' is one of two ellesmeroceratid genera know to have persisted from the Late [[Cambrian]] into the Early [[Ordovician]].  The other is ''[[Clarkoceras]]''.  Flower, 1964, named two species, ''Ectenolies primus'' and E''ctenolites cf primus'' from the Trempealeauan (uU Camb) San Saba Limestone of central Texas; at that time the only known Upper Cambrian member(s) of the genus. Other species are confined to the Lower Ordovician Gasconadian.
==References==
==References==

Latest revision as of 15:21, 2 October 2014

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