This Specimen has been sold.
"Dawn Sunrise" Asteroceras Ammonite Fossil - Translucent
This is a beautifully prepared, 2.4" wide Asteroceras obtusum ammonite fossil from the Lyme Regis region of England. Much of the shell is preserved as a translucent, yellow agate. The rock has been removed from behind this translucent portion of the ammonite so that it shines like a sunrise when backlit. The rock has been cut flat so that it displays very aesthetically 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
LOCATION
Charmouth, Lyme Regis, Dorset, England
FORMATION
Lower Lias, Obtusum Zone
SIZE
Ammonite 2.4" wide
CATEGORY
SUB CATEGORY
ITEM
#130210
We guarantee the authenticity of all of our specimens.