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9.2" Jurassic Ammonite (Kosmoceras) Cluster - England
This is a 9.2" wide cluster of Kosmoceras (Guliemiceras) jasoni ammonites from Gloucestershire, England. The ammonites are nicely prepared and create a raw but aesthetic piece. The largest ammonite (2.1" wide) broke away from the rock during collection and has been glued back into place.
The rock is flat along edge, however the specimen is accompanied by an acrylic display stand to assist with preferred presentation.
The rock is flat along edge, however the specimen is accompanied by an acrylic display stand to assist with preferred 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
Kosmoceras (Guliemiceras) jasoni
LOCATION
Gloucestershire, England
FORMATION
Oxford Clay
SIZE
Entire specimen: 9.2 x 4.4", Largest ammonite: 2.1" wide
CATEGORY
SUB CATEGORY
ITEM
#243471
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