Goniatitida

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'''Goniatitida''' constitute an order of [[Ammonoidea|ammonoid]] [[Cephalopoda|cephalopods]] from the [[Late Paleozoic]] and are found in [[Middle Devonian]] to [[Upper Permian]] marine sedimnets. The Goniatitida diversified into two main lineages in the Early [[Carboniferous]] ([[Mississippian]]) and subsequently into a number of sublineages, forming different [[families]] and [[superfamilies]].  
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'''Goniatitida''' constitute an order of [[Ammonoidea|ammonoid]] [[Cephalopoda|cephalopods]] from the Late [[Paleozoic]] and are found in Middle [[Devonian]] to Upper [[Permian]] marine sediments. The Goniatitida diversified into two main lineages in the Early [[Carboniferous]] ([[Mississippian]]) and subsequently into a number of sublineages, forming different families and superfamilies.  
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Goniatitids (goniatites) are united by a basic suture of 8 simple lobes, less in primitive forms, more that may be [[ammonit|ammonitic]] in advanced forms, and a [[siphuncle]] that is prosiphonate. (MF&S)  
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Goniatitids (goniatites) are united by a basic suture of 8 simple lobes, less in primitive forms, more in advanced forms that may be ammonitic, and a [[siphuncle]] that is prochoanitic (prosiphonate (MF&S)  
==Morphology==
==Morphology==

Revision as of 22:38, 17 August 2009

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