Formation: Callovian Layers
Location: Michailov, Russia
Size: Largest ammonite is 3.1 inches across
This is a very colorful ammonite trio from Russia. There are three Cosmoceras proniae on the plate. Cosmoceras has pronounced ribbing and a sharp keel. These specimens are preserved in a very 3-dimensional manner and exhibit fine detail. The ribbing pattern is easily seen, and the inner coils are clearly defined. The nacreous shell of the cephalopods is intact, and the gorgeous iridescent coloration is just spectacular. The color is even more stunning than what the photo shows. The ammonites are wonderfully perched atop the block of sculpted concretionary matrix. This is a beautiful triple example of ammonites from Russia.
A Certificate of Authenticity from EXTINCTIONS is included with this specimen.