Copalized ammonite in mother rock


Hoogte: 33 cm
Breedte: 70 cm
Diepte: 17 cm
Gewicht: 20,8 kg
Leeftijd: 65 miljoen jaar (Upper Cretaceous)
Nummer: F1030

More information

On this page you will find related information about the opalised ammonite in mother rock.

This geoplised ammonite was found in South Dakota, V.S .. With the back still in the original clay concretion or "nodule", this specimen shows how it was created. Species: Sphenodiscus lenticularis, age around 65 million years.

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