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3.4" Jurassic Ammonite (Caenisites) Fossil - Dorset, England
This is a beautifully preserved, 3.4" wide Caenisites turneri ammonite fossil from the Lower Lias, Birchi Subzone in the Lyme Regis region of England. It is Lower Jurassic in age, or approximately 200 million years old. One half of the ammonite has been exposed from the rock. This specimen is accompanied by an acrylic 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.
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
Caenisites turneri
LOCATION
Lyme Regis, Dorset, England
FORMATION
Lower Lias, Birchi Subzone, Turneri Zone
SIZE
Ammonite: 3.4" wide. Entire specimen: 6.85 x 6.5"
CATEGORY
SUB CATEGORY
ITEM
#240742
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