Audouliceras renauxianum Ammonite Fossil

This image is of an Audouliceras renauxianum (d'Orbigny 1842) ammonite fossil. The animal existed in the Cretaceous Period. Fossil was discovered in Uljanowsk, Russia. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

Didymoceras nebrascense Ammonite Fossil

This image is of a Didymoceras nebrascense (Meek and Hayden, 1856) ammonite fossil. The animal existed in the Campanian age of the Late Cretaceous Period. Fossil was discovered in South Dakota, USA. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

Archaeocidaris Sea Urchin Fossil

This image is of an Archaeocidaris sea urchin fossil. The animal existed in the Carboniferous Period. Fossil was discovered in Brown County Texas, USA. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

I posted another specimen found at this locality in 2017 on display at Mace Brown Museum of Natural History is located at the College of Charleston South Carolina USA.