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Pachylytoceras dilucidum 21 cm.jpg (893×565)

de BBC News

Ammonite diet revealed in X-rays

Ammonites were free-swimming molluscs that occupied the ancient oceans. They existed between about 400 million years ago and 65 million years ago

de Taringa!

Ammonites,los ex gigantes del océano.

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Recently I am fascinated by fossils Ammonite pavement in Lyme Regis, Dorset, Great Britain - a World Heritage site ... Shift+R improves the quality of this image. CTRL+F5 reloads the whole page.

Beautiful ammonites -- Quenstedtoceras

ceras (ammonite from the Cretaceous)

Russian Ammonite with Rainbow Pyrite taken effect in the internal chambers during the Fossilization process. Fully Pyritiferous Fossil Ammonite. Genus: Quenstedtoceras Ammonite sp Location: Volga River Formation, Russia Geologic Age: Jurassic Period

Hard to believe it, but this is real. Famous ammonite, highly collectable. "Promicroceras planicosta"

Ammonite fossil: These creatures lived between 240 - 65 million years ago, when they became extinct along with the dinosaurs. 'ammonite' (usually lower-case) originates from the Greek Ram-horned god called Ammon. Ammonites belong to a group of predators known as cephalopods, which includes their living relatives the octopus, squid, cuttlefish and nautilus. Ammonites moved by jet propulsion, expelling water through a funnel-like opening to propel themselves in the opposite direction.