Search results for "marine reptiles"

  • Kronosaurus queenslandicus

    Kronosaurus queenslandicus, from the Early Cretaceous of Queensland, was the largest known pliosaurid. These huge marine carnivores plied the oceans and inland seas during the Mesozoic, using both pairs of limbs to 'fly' underwater. Kronosaurus would have hunted large fish, invertebrates such as giant squid and ammonites, and perhaps even other large reptiles like elasmosaurids and ichthyosaurs.

  • Platypterygius australis

    Platypterygius longmani was an ichthyosaur, a dolphin-like marine reptile that roamed the Eromanga Sea of inland Australia during the Early Cretaceous. This large ichthyosaur would have been a top marine predator, feeding on fish and cephalopods. Ichthyosaurs had the largest eyes of any vertebrate, and keen eyesight would have helped Platypterygius to spot prey in dark, cold waters.

  • Opalised fossils from Lightning Ridge

    Lightning Ridge in north-western New South Wales is a rich source of opals, and many beautiful and valuable opalised fossils have been found there. These opalised fossils date from the Cretaceous Period, with specimens coming from many animal groups including dinosaurs, marine reptiles, fish, early mammals and molluscs, as well as fossils of parts of plants.

  • The Eocene Epoch (55-38 million years ago)

    By the beginning of the Eocene, Gondwana had almost split apart, but Australia, Antarctica and South America remained joined. The Antarctic portion of Gondwana straddled the South Pole but because the global climate was warmer it was free of ice and snow. A forested corridor linked Australia and South America.

  • Skeleton of a small pliosaur: 'Eric'


  • The Cretaceous Period (146-65 million years ago)

    In the early Cretaceous, many of the southern continents were still joined together as part of the southern landmass called Gondwana. Northern continents formed the great landmass Laurasia. These two supercontinents shared many plants and animals dating from an earlier time when they were joined as one enormous landmass.

  • Food from the sea: mammals, birds and turtles

    Marine mammals (seals, dugongs, dolphins and whales), sea-birds and possibly turtles were all eaten by Aboriginal people of coastal Sydney.

  • Pliosaur

    Pliosaurs were aquatic carnivorous reptiles, not dinosaurs, that lived between 220 and 70 million years ago. This pliosaur has not yet been named scientifically but may be a specimen of Yuzhoupliosaurus chengjiangensis.

  • 1930s: The One That Got Away

     A functional Ford or a ferocious fossil form.

  • A National Treasure

    How 'Eric' the opalised pliosaur made his way into the Australian Museum hall of fame. 

  • Umoonasaurus demoscyllus

    Pliosaurs are actually aquatic carnivorous reptiles, not dinosaurs. 'Eric' was a small, short-necked pliosaur and and was discovered by an opal miner in Coober Pedy in 1987. 'Eric' is one of the most complete opalised vertebrates known and became part of the fossil collection of the Australian Museum in 1993 after money to purchase the specimen was raised by the schoolchildren of Australia (with the help of Akubra Hats). 'Eric' is currently on display at the Australian Museum.

  • Natural History of Australia’s First National Park

    Do you like to visit the Royal National Park? Scientists do too.

  • Museum2you: Introduced Species content

    A sneak preview of the Introduced Species content in our Museum2you program, available for hire to communities across NSW.

  • Introduced Species: Friend or foe?

    The introduction of plant and animal species around the world has lead to the destabilisation and even collapse of some ecosystems. But are all the effects of introduced species negative?

  • Underwater observations on sea snake behaviour