Monday, September 6, 2021

Placenticeras meeki Ammonite Fossil

Here is a picture of a Placenticeras meeki ammonite fossil at the Museo di Paleontologia at Sapienza University of Rome Italy. Creatures like this existed in the western interior seaway at the time of the upper/late Cretaceous Period (ICS geological timescale: Maastrichtian; 70 million years ago). Fossil was found in Cheyenne River of South Dakota USA.

Image taken in June 2014.