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Hoploscaphites : ウィキペディア英語版 | Hoploscaphites
Hoploscaphites is an extinct ammonite genus from the Upper Cretaceous, included in the family Scaphitidae. It is considered by some to be a subgenus of ''Scaphites''. Like ''Scaphites'' the shell of ''Hoploscaphites'' is involute with the final whorl projecting forward and curved back on itself. Shells vary from compressed to inflated with convex sides. Tubercles normally present may be sparse or absent. ==References==
* * Cobban, W.A. 1974. Ammonites from the Navesink Formation at Atlantic Highlands, New Jersey; USGS Prof Paper 845
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