拍品专文
A very large example of this genus.
.jpg?w=1)
MADAGASCAR
细节
A LARGE SPLIT AMMONITE
MADAGASCAR
Cleoniceras sp. from the early Cretaceous (circa 135 million years ago), split and polished to reveal inner chambers of caramel-brown calcite
13½ in. (34cm.) diameter
MADAGASCAR
Cleoniceras sp. from the early Cretaceous (circa 135 million years ago), split and polished to reveal inner chambers of caramel-brown calcite
13½ in. (34cm.) diameter