St. Stephen's Cathedral is located in Vienna, Austria. In 1137 the first Romanesque church was built at the site. The second Romanesque church was built 1200-1225. In 1433 the South Tower was completed and the North Tower finished by 1578.
The floor has checkerboard pattern made up of red and white stone tiles. There is at least one red tile has an ammonite fossil in it. It appears to be about 7 cm wide. The images were taken in August 2024.
It appears in red floor tile of the church in back right corner. The limestone/marble tile could be Red Verona or Rosso Verona marble. This rock dates to the Upper Jurassic Period of the Rosso Ammonitico Formation, Oxfordian Stage, Verona Province, Venetia Region of Italy.
