Ceratitida
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Ceratitida
an order of extinct cephalopods of the superorder Ammonoidea. The mollusks lived from the Permian to the Triassic. There were approximately 400 genera, the majority of which existed during the Triassic. The order is therefore important in the stratigraphy of Triassic deposits.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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