But ammonites weren't reptiles: they were ocean-dwelling molluscs, specifically cephalopods. An ammonite fossil with a carved snake's head Zoë Hughes, Curator of Fossil Invertebrates at the Museum, ...

ranging from deep-sea sediments to shallow deposits. For ammonite fossils to achieve such exceptional preservation, specific environmental conditions must be met. Rapid burial by sediment is key ...

“Those ammonites might have stored gases inside their shells and stood on the sea floor with the buoyancy force,” Muramiya said. The ammonite belonged to the same group as octopi, squid and ...

The ornately colored sea anemone (uh-NEM-uh-nee) is named after the equally flashy terrestrial anemone flower. A close relative of coral and jellyfish, anemones are stinging polyps that spend most ...