An iridescent specimen of Jeletzkytes spedenifrom the Cretaceous of South Dakota. But the most striking feature of this ammonite is its natural color. The shiny, iridescent shell of this ammonite is very easily seen. This type of shell mineralization is opalized, coming from permineralized ammonite shell. The matrix was prepared in such a way that it can be displayed without the use of a stand. Lots of shells are beside the ammonite in the matrix.
Ammonite size : 6.2 x 4.7 x 2.4(width) cms
Incredible conservation of fossil sea star . Intact starfish specimens are quite uncommon in the fossil record. The specimen shows an amazing amount of detail and the coloration is natural, it is due to the oxidization of iron pyrite.
100% fossil original.
It will be carefully packed and shipped with online tracking. There will also be insurance for losses or breakages in transportation.
- Iridescent Ammonite
- On matrix
- Scientific name
- Jeletzkytes spedeni
- South Dakota, USA
- Geological Period
- Cretaceous, Maastrichtian,Fox Hills Formation
- Good condition
- 9.1×6.4×12.4 cm
- 520 g