Polished Sutured Ammonite - 3.77" Phylloceras dinosaurs Redondasaurus is the primary genus

Redondasaurus is the primary genus found in the area

Each layer of the microbial mat built upon the last

The cause of this mass extinction event is an ongoing and often contentious debate in the scientific community

The window was sold during a government surplus auction in the late 1980s as part of the long (and continuing) decommissioning process

allowing for an in-depth and three-dimensional look at the original plant

Polished Sutured Ammonite - 3.77" Phylloceras dinosaurs Redondasaurus is the primary genusAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 3. 77" polished Phylloceras fossil from Madagascar. This particular genus of ammonite had beautiful suture patterns that cross their shells like feathered jigsaw pieces and make fantastic display pieces. A stand and informational card is included with each fossil.