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is variably involute to evolute. Sides and venter are flat, shoulders sharp. Ribs more or less prominent, coarse, branch from above the umbilical border, and strengthen with age. Saddles in the suture are broad and rather simple.
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ammonites included in the
Gastrohoplinae from Middle Albian age marine strata in western North America and parts of Europe.
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provides insufficient context for those unfamiliar with the subject
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233:Treatise on Invertebrate Paleontology
44:providing more context for the reader
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16:Genus of molluscs (fossil)
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82:Temporal range: L
309:Ammonitida genera
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168:Hoplitaceae
132:Cephalopoda
303:Categories
227:References
180:Hoplitidae
156:Ammonitida
144:Ammonoidea
139:Subclass:
84:Cretaceous
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213:hoplitid
175:Family:
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88:Albian
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