Zenostephanus
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Template:Short description Template:Automatic Taxobox
Zenostephanus is true ammonite genus from the lower part of the Upper Jurassic of eastern England and Scotland belonging to the ammonitid family, Perisphinctidae.[1]
Zenostephanus is revised from Xenostephanus, a preoccupied name for a new genus of toxodont notoungulate from Argentina.[2] The type is Aulacostephanus ranbyensis
References
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- Perisphinctidae in the Treatise on Invertebrate Paleontology, Part L, Mollusca 4.