18.3" Iridescent Ammonite (Deshayesites & Aconeceras) Cluster

This is a phenomenal cluster of Deshayesites deshayesi and Aconeceras trautscholdi ammonites from the Lower Cretaceous (Aptian) deposits of Saratov, Russia. They have been beautifully prepared from the hard concretion from which they were found. The ammonites have a wonderful iridescent shell preservation and the largest complete ammonite (Deshayesites) is 2.35" wide. The back of the rock has been cut flat.

It comes with a display stand to assist with presentation. The rock was collected in five separate pieces, requiring crack repair and some spots of gap fill within the rock.

About Ammonites

Ammonites were ancient marine cephalopods, similar to today's squids and octopuses, but with a defining feature: their distinctive, tightly coiled spiral shells. These shells, resembling those of modern nautiluses, served as both a protective home and a buoyancy aid, allowing ammonites to navigate the prehistoric seas with ease. First emerging around 240 million years ago in the Triassic Period, ammonites thrived for over 175 million years, adapting through numerous forms and sizes. As predatory creatures, they likely fed on smaller marine organisms, using their tentacles to capture prey. However, their long reign came to an end 65 million years ago at the close of the Cretaceous, coinciding with the mass extinction event that also eliminated the dinosaurs.

What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
FOR SALE
$1,395
DETAILS
SPECIES
Deshayesites deshayesi & Aconeceras trautscholdi
LOCATION
Saratov, Russia
SIZE
Entire specimen: 18.3 x 4.6", largest ammonite: 2.35" wide
CATEGORY
SUB CATEGORY
ITEM
#301357
GUARANTEE
We guarantee the authenticity of all of our specimens.