They contain some limestone rocks showing abundant marine fossils.
The rich flora of this interval left behind abundant fossils in the sedimentary rocks that were then just being deposited.
These plants left behind abundant fossils like leaves, stems, and trunks.
La Matilde is known for the abundant fossils recovered from it.
The abundant marine fossils are evidence that around 380 million years ago, this area had a warm, tropical climate.
A variety of local plants left behind abundant fossils in the state's contemporary terrestrial environments.
The gravel and marl pits of North Carolina are also known for their abundant fossils.
It contains abundant fossils of vertebrates, including dinosaurs such as the hadrosaurs.
This story may be based off the region's abundant fossils.
These concretions are more common in areas with abundant fossils.