The calcium carbonate precipitated out of the water and eventually solidified into limestone. Numerous marine organisms used the dissolved calcium carbonate in the seawater to form internal skeletons ...

Records of these conditions have been left behind in the layers of limestone and mudstone in local bedrock. The fossils that these layers contain are world-famous for the details that they record ...

Mudstone, shale, and limestone are examples of sedimentary rock likely to contain fossils. As the layers of sediment build up on top of one another, they create a physical timeline. The oldest layers, ...

Researchers are constantly finding amazing fossils in places where you might ... of a popular building material known as oolitic limestone, scientists have declared that the grainy rocks were ...

The stunning limestone walls and floors that are a hallmark of Asia Society Texas Center's architecture are also home to fossils dating to the Jurassic era. Learn about some of the different types of ...

The specimen in question is an exquisite fossil of a gossamer-winged butterfly from the Isle of Wight. It is the only representative of its species ever found. Discovered in the Insect Limestone at ...