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This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
5.3" Asteroceras Ammonite With Promicroceras - Collector Piece
This is an outstanding Lyme Regis ammonite specimen that came out of an old collection. There is a beautiful, 5.3" wide, agate replaced Asteroceras obtusum nicely presented on a thick piece of limestone along with a smaller Promicroceras planicosta ammonite. The coloration and sutures on the ammonite are gorgeous. The base of the rock has been cut flat so that it displays nicely on a hard surface 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.
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
Asteroceras obtusum & Promicroceras planicosta
AGE
LOCATION
Charmouth, Lyme Regis, Dorset, England
FORMATION
Upper Inferior Oolite
SIZE
Ammonites 5.3" & 1.15", Rock 12x6.8"
CATEGORY
SUB CATEGORY
ITEM
#131932
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