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Beautiful Ammonite Cluster (Asteroceras & Promicroceras) - England
This is a gorgeous cluster of three, exquisitely prepared ammonite fossils from the Lyme Regis region of England. There is a 1.4" wide Asteroceras obtusum and two smaller Promicroceras planicosta in close association. The rock around them has been painstakingly removed, so that they are displayed in high relief against the rock. The base of the rock has been cut flat so that it stands up nicely without the need for a 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.
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.
SPECIES
Asteroceras obtusum & Promicroceras planicosta
LOCATION
Charmouth, Lyme Regis, Dorset, England
FORMATION
Lower Lias, Obtusum Zone
SIZE
Larger ammonite 1.4" wide, Rock 4.3x3"
CATEGORY
SUB CATEGORY
ITEM
#62903
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