1 of 5000

|

wood prints prehistoric wood prints animal wood prints animals wood prints fauna wood prints prehistory wood prints fossil wood prints fossils wood prints fossilized wood prints extinct wood prints extinction wood prints extinct animal wood prints extinct animals wood prints ammonite wood prints ammonites wood prints mollusk wood prints

photographs prehistoric photos animal photos animals photos fauna photos prehistory photos fossil photos fossils photos fossilized photos extinct photos extinction photos extinct animal photos extinct animals photos ammonite photos ammonites photos mollusk photos

Add This Artwork to Your Favorites Collection

Comment

Add This Artwork to Your Favorites Collection

Comment

Reconstruction of the late Cretaceous ammonite, Placenticeras meeki, which flourished 70 million years ago in the shallow seas that covered much of the western interior of North America from New Mexico to Alberta. Fossils measuring up to 80 cm. in diameter are found in the Pierre Shale. This genus has world-wide distribution but like all other ammonites, it became extinct at the end of the Cretaceous along with the dinosaurs. Extinction of numerous plant and animal groups at this time is attributed to profound environmental disturbances from the collision of an asteroid with the earth near the Yucatan Peninsula in the Gulf of Mexico.