"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.

Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. True ammonites appeared in the fossil record about 240 million years ago. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

Asteroceras obtusum
Charmouth, Lyme Regis, Dorset, England
Lower Lias, Obtusum Zone
Ammonite 2.4" wide
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