Mined from: Madagascar
Geological Age: 160 mya
Description: Perisphinctes have distinct ribbed shells and often have a chalky white exterior. They were marine animals that are similar to the squid. They had a soft body with tentacles that emerged from the shell.
Approximate Size of 1 piece: 8cm x 7.5cm x 3cm
Approximate Weight of 1 piece: 172g
Approximate Size of 1 piece: 12cm x 13.5cm x 4cm
Approximate Weight of 1 piece: 545g
Approximate Size of 1 piece: 17cm x 15cm x 5.5cm
Approximate Weight of 1 piece: 1292g
We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.