Item Information

Dimensions (mm) 44 x 11 x 11mm
Weight (carats) 36.45 carats


Orthoceras was a ancient mollusk that lived more than 400 million years ago. The name means straight horn, referring to the characteristic long, straight, conical shell. The preserved shell is all that remains of this ancestor of our modern-day on top-ready to wear.We have taken a photo of both sides of the pendant even though the fossil is on one side only.

Well polished

Found in Morocco 



SIZE:  44 X 11  X 11  MM APP


The soft body lived in the last open-ended segment at the large end of the conical shell. As the body grew and the housing segment became too small, a dividing wall, called the septa, grew to separate the old “home chamber” from the new one. The differences in the composition of these shell parts allowed for differences in fossilization so the parts can be seen.

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Pricing & Details

Auction ID 57515
Watchers 6 watching
Viewed 1,977 times
Starts 9th Jan 2019 11:44pm PST

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