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5.2" Stephanoceras Ammonite - Kirchberg, Switzerland
This is a nicely prepared 5.2" Ammonite (Stephanoceras) from Kirchberg, Switzerland. This uncommon ammonite is fully inflated with very nice surface detail including the distinctive ridges and nodes. There are two repaired cracks. The outer shell is worn toward the inside of the coil, leaving the suture pattern visible.
The genus Stephanoceras is commonly used as an index fossil to help identify the Bajocian Stage of the Middle Jurassic, approximately 164-170 million years old.
It comes with an acrylic display stand.
The genus Stephanoceras is commonly used as an index fossil to help identify the Bajocian Stage of the Middle Jurassic, approximately 164-170 million years old.
It comes with 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
Stephanoceras sp.
LOCATION
Kirchberg, Switzerland
SIZE
5.2" wide
CATEGORY
ITEM
#108789
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