Hoploscaphites Heteromorph Ammonite, from Garfield Country, Montana (No.16)

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Hoploscaphites Heteromorph Ammonite, from Garfield Country, Montana (No.16)Hoploscaphites Hetromorph
from Garfield Country, Montana USA
72 Million Years, Lower Maastrichtian

Measurements Approx.
Height - 9.6 cm
Width - 4 cm
Length - 7.9 cm





Hoploscaphites
 is an extinct ammonite genus from the Upper Cretaceous period, included in the family Scaphitidae. It is considered by some to be a subgenus of Scaphites, a genus of extinct cephalopod belonging to the family of Heteromorph Ammonites.

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.

   



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