Beautiful pieces of fossil fish from Brazil and USA
125 million years old Brazil fish
These fish from Brazil lived in the cretaceous period and are about 125 million years old. They are found in the limestone quarries of Nova Olinda in Brazil. The quarries mainly extract laminated limestone, which are thin slabs used as tiles.
45-50 million years old American fish
The fish found in the Eocene deposit of Green River Wyoming are between 48 and 55 million years old. In the Eocene, there was a huge lake with a lot of fish in it. Due to rainy periods and dry periods, a layer of sediment was added to the bottom of the lake each year. Six million years of continuous sediment have been found. Between the sediment fish, but sometimes also other animals like shrimps, could be preserved. Because of the sedimentary barrier the carcass could not decompose and it had the chance to fossilize. Wyoming is known for its great diversity of fossils and the high quality in which they are preserved.