History
Thanks to its abundant Triassic clay beds, Krasiejów once become famous for the highest-quality and very durable bricks produced there. After World War II, the brickyard was consumed by a massive fire; later on, a strip mine for cement production started its operation there. In the 1980s, Krzysztof Spa∏ek, a local high school student living nearby, discovered an unknown type of fossil in the clayey ground.

In 1993, Jerzy Dzik of the Polish Academy of Sciences (PAN) in Warsaw came to Krasiejów. Following is his recollection of the day on which the greatest scientific adventure of his life started: „I climbed to the top of the wall. There was an oval-section bone sticking out of the wall. I cleaned its surrounding carefully with a scaling hammer and I got stunned: it was the nose-part of a large reptile skull. That was something we had not seen in Poland!”