A polished Urchin - Sand Dollar

Here is a fossil of an extinct species of sand dollar, Mepygurus marmonti from Madagascar.

It's been highly polished to bring out the surface detail.

A sand dollar is a highly flattened form of urchin of the order Clypeasteroida.

Fossilized sea urchin shell on black background
Close-up of a round, brown seed with star-shaped markings on its surface against a black background.

  • 6 × 2 cm

    Middle Jurassic

  • Dos & Bertie Winkel collection

  • Madagascar

  • € 50,—