1.9" Jurassic Fossil Ammonite (Phylloceras)

This is a 1.9" fossil ammonite (Phylloceras baconicum) from the Lower Jurassic (Toarcian). This came out of an old collection with full location information but based on research we believe it might be from Italy. The outer-most shell weathered away, revealing the intricate details of the ammonites's sutures.

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
Phylloceras baconicum
LOCATION
Italy?
SIZE
Ammonite: 1.9" wide
CATEGORY
ITEM
#189519
GUARANTEE
We guarantee the authenticity of all of our specimens.