A groundbreaking study of 7,000-year-old exposed coral reef fossils reveals how human fishing has transformed Caribbean reef food webs: As sharks declined by 75 percent and fish preferred by humans ...

Isotope evidence from fossil otoliths shows Caribbean reef food chains have shrunk by up to 70%, signaling a major loss of ...

Agatized coral is one of nature’s rarest and most stunning geological creations. Formed over 20 million years, this fossilized coral has been slowly replaced with agate, creating colors and patterns ...

Fossil coral exposed in a limestone outcrop above present sea level in the Seychelles. Newly uncovered evidence from fossil corals suggests that sea levels could rise even more steeply in our warming ...

Lead author Carra Williams, a PhD student in geosciences at the University of Sydney, here holds a fossilised coral core that has undergone neutron scanning. A University of Sydney student has ...

Petoskey and Charlevoix stones are both fossilized coral from the Devonian Age, found in Michigan. Petoskey stones have a larger, more symmetrical hexagonal pattern than Charlevoix stones. Rock ...

L-1437 (Shell Rock Chert): Unknown collection procedure. Collection includes raw material, outer surface, surrounding matrix, archaeological specimens (?), modern flint-knappers' work, heat-treated ...