Ammonite

Asteroceras Obtusum.

Extinct group of marine animals. They have been used as index fossils because it is possible to link the rock layer in which they are found to specific geological time periods. Because these animals and their close relatives are extinct little is known about their way of life.

 
Location: Dorset, England
Geologic Time Period: Early Jurassic Period: 200 Million Years Ago
Dimensions: 1½" x 1½" - Specimen 3½" x 6" x 1" - Matrix
Price: $125.00