Ammonite

Macrocephalites macrocephalus

Macrocephalites is one of the most common and cosmopolitan ammonites of the Middle Jurassic and partially an important guide fossil in Europe and the Indo-East-African Province.

The ammonites of this genus inhabited the shelf seas around the edges of the Tethys Ocean from the Late Bathonian to the earliest Middle Callovian.

Ammonites were shelled cephalopods that died out about 66 million years ago.

Ammonites were born with tiny shells and, as they grew, they built new chambers onto it.

They would move their entire body into a new chamber and seal off their old and now too-small living quarters with walls known as septa.

  • 4,2 × 5,2 × 2 cm

    Middle Jura

    c. 174 - 163.5 million years

  • Dos & Bertie Winkel collection

  • Sengenthal, Bayern Germany

  • € 30,—