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4.6" Jurassic Ammonite (Parkinsonia) Fossil With Belemnite - England
This is a gorgeous, 4.6" wide example of Parkinsonia rarecosta, a species of ammonite from the Inferior Oolite of Dorset, England. It is Jurassic in age and has been meticulously exposed from the rock it was found in. A belemnite fossil has also been exposed, resulting in this natural fossil association. The base of the rock has been cut flat for presentation.
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.
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.
SPECIES
Parkinsonia rarecosta
LOCATION
Freshwater, Burton Bradstock, Dorset, England
FORMATION
Inferior Oolite
SIZE
Ammonite: 4.6" wide, Entire Specimen: 6 x 5.7"
CATEGORY
SUB CATEGORY
ITEM
#240842
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