Quenstedticeras sp. Ammonite
Geological Time: Jurassic, Callovian Stage
Size (25.4 mm =1 inch): 44 mm
Fossil Site: Ulyanovsk, Russia
Code: AA045
Price: $22.50 - sold
 Description:
A magnificent example of the ammonite Quenstedticeras of the Callovian
Stage (161 m.y.a) deposits of Russia. The depositional environment
was one that was also anoxic, allowing replacement by Iron Pyrite
(Fool's Gold). The ammonite has been sectioned to allow you to see
the many chambers within which the ammonite added as it grew. The
septa (divisions) between chambers appears as a light line. Some pyrite
adheres to the surface as seen in the photos. I received a number
of split halves such as this, and offer them to those who want an
inexpensive example. For those skilled in jewelry making, this could
be fashioned into a wonderful pendant. |
