For years, a mysterious fossil specimen defied categorization, until one paleontologist made a surprising discovery.

Scientists discovered a 480-million-year-old phosphatic sponge in South China, making it the oldest known stromatoporoid and extending its fossil record by 20 million years. International scientists ...

Hole DSB-76, a stepout hole 100m south-southeast of discovery hole DSB-72, intersected a high-grade silver zone in the upper part of the hole grading 129.57 g Ag/t over 52.50m beginning at 151.50m ...