Holocystites gyrinus Cystoid Fossil

This fossil which appears to be a Holocystites gyrinus (Miller & Gurley, 1894) cystoid was found in Napoleon, Indiana USA. It dates to the Silurian Period  (Telychian to Sheinwoodian stage) in age. The locality is world famous for this type of fossil. It was found in the Massie Formation or Osgood Shale.

 

Goronyosaurus nigeriensis Mosasaur Fossil

Here is a picture of a reconstructed skull of a Goronyosaurus nigeriensis (Swinton et al., 1930) fossil at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2024.  The creature lived during the Upper Cretaceous Period. It might have been found in Sokoto District, Nigeria Africa.

Coelodonta antiquitatis Rhinoceros Fossil

 

Here is a picture of a woolly rhinoceras skull of a Coelodonta antiquitatis (Blumenbach, 1799) fossil at Museo di Geologia e Paleontologia Florence Italy (Università degli Studi di Firenze) in August 2024.  The creature lived during the Pleistocene Epoch. It was found in Siberia Russia.