Xenodiscidae

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Systematic Paleontology <br>
Systematic Paleontology <br>
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:Order:[[Ceratitida]] <br>
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Order:[[Ceratitida]] <br>
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::Superfamily:[[Xenodiscaceae]] <br>
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Superfamily:[[Xenodiscaceae]] <br>
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:::Family:'''Xenodiscidae'''
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Family:'''Xenodiscidae'''
Xenodiscidae is a family of Middle and Upper [[Permian]] Ceratitida established by Frech, 1902, described as having compressed, evolute, discoidal shells with rounded to acute venters, commonly present lateral ribs, and goniatitic or weakly ceratitic sutures.   
Xenodiscidae is a family of Middle and Upper [[Permian]] Ceratitida established by Frech, 1902, described as having compressed, evolute, discoidal shells with rounded to acute venters, commonly present lateral ribs, and goniatitic or weakly ceratitic sutures.   

Revision as of 19:01, 22 May 2012

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