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13" Spiny Jurassic Ammonite (Apoderoceras) Fossil - England
This is a massive, 13" wide, spiny ammonite (Apoderoceras cf. leckenbyi) fossil from Charmouth, England. It has been nicely prepared using mechanical tools to remove the surrounding limestone. Many of the spines are particularly preserved but they have not been restored as is typically seen. Small, naturally associated ammonite fossils can be found scattered throughout the specimen. The rock has been cut flat so that it stands up nicely without the need for a display stand. The entire specimen measures 16.1' tall by 12" wide and weighs just over 57 lbs.
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
Apoderoceras cf. leckenbyi
LOCATION
Charmouth, Lyme Regis, Dorset, England
FORMATION
Lower Lias, Taylori Subzone, Jamesoni Zone
SIZE
Ammonite: 13" wide, Entire specimen: 16.1 x 12", Weight: 57 lbs
CATEGORY
SUB CATEGORY
ITEM
#243511
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