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2" Fossil Ammonite (Arctoceras) - Nevada
This is a 2.0" fossil ammonite (Arctoceras) from the Thaynes Formation near Elko City, Nevada. It is in good condition with a repaired crack and some of the rock in which it was fossilized remaining near the opening.
This ammonite comes out of an old fossil collection we recently purchased with a lot of unique material from unusual and often no longer accessible sites.
This ammonite comes out of an old fossil collection we recently purchased with a lot of unique material from unusual and often no longer accessible sites.
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
Arctoceras tuberculatum
AGE
LOCATION
Elko City, Nevada
FORMATION
Thaynes Formation
SIZE
2.0"
CATEGORY
ITEM
#117203
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