UK Ammonite Hoploscaphites IF-UKA-16-010 Lower Cretaceous Only Brontosaurus is also in

Only Brontosaurus is also in the subfamily

and the maximum height is 13 inches

Careful preparation however can preserve the suture pattern as well as the lateral ribbing characteristic of the species

The petrified wood of this tree is frequently referred to as "Rainbow wood" because of the large variety of colors some specimens exhibit

The species is known from massive tree trunks that weather out of the Chinle Formation in desert badlands of northern Arizona and adjacent New Mexico

UK Ammonite Hoploscaphites IF-UKA-16-010 Lower Cretaceous Only Brontosaurus is also inHoploscaphites nodosus Pierre Formation Upper Cretaceous (Campanian) Pennington County, South Dakota This is an excellent example of the microconch form of H. nodosus. The specimen has the original shell, and it is iridescent on the living chamber. This specimen has very well defined nodes typical of the species. It is complete all the way to the aperture. The specimen is repaired. The ammonite is just over 4 inches. H. nodosus is comparatively large