8.6" Fossil Ammonite, Bivalve, and Belemnite Association - England

This is a very displayable, 8.6" wide ammonite, belemnite, gastropod, and bivalve fossil association, collected from Jurassic-age (Bajocian stage) Inferior Oolite of Dorset, England. The rock is covered in fossil specimens which include two bivalves, three belemnite rostrums, a small gastropod, and eight ammonites, with the largest ammonite (Otoites sauzei?) measuring 3.2" wide. The base of the rock has been cut flat so that it displays nicely without the need for a display stand.

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.
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DETAILS
SPECIES
Various Species
LOCATION
Burton Bradstock, Dorset, England
FORMATION
Inferior Oolite
SIZE
Entire Specimen: 8.6 x 5 x 4", Largest Ammonite: 3.4" wide
ITEM
#211929
GUARANTEE
We guarantee the authenticity of all of our specimens.