83–72 million years ago, Deinosuchus was the largest predator in North America. Deinosuchus
Deinosuchus riograndensis, an extinct giant relative of alligators, was the undisputed top predator in the rivers and estuaries along the east coast of southern Laramidia — a huge island that formed when the rising sea divided North America into several continental islands. From fossil remains it has been estimated to have grown to about 11 metres in length and weigh 6–7 tonnes, by far exceeding any modern alligator or crocodile. It was twice as heavy as the largest tyrannosaurs of its time and, as suggested by bite marks preserved on fossil bones, it preyed on dinosaurs. At this time there were also smaller-sized Deinosuchus, which may be of a different species, living along the southern and eastern coast of the island called Appalachia. The evidence that this Appalachian population commonly preyed on turtles include bite marks preserved on fossil turtle bones.
© WA Museum
Tiger Cowry (Shell) – Cypraea tigris
The spotted shell of the Tiger Cowry is large and heavy for a sea snail measuring up to 15cm in length. Completely covered by its mantle unless threatened, the surface of the shell is polished and glossy.
© 2015 Western Australian Museum
Cowry, Cypraea, Gastropod, Gold, Marine, Mollusc, Mollusk, Shell, Snail, Tiger, Tigris, White, X Ray
Pinnacles Desert - Western Australia
Situated near Cervantes, about 180 km north of Perth Western Australia is a sandy desert containing one of the most unusual landscapes in Australia : the Pinnacle Desert. Out of the yellow, shifting sand rise thousands of huge limestone pillars known as the Pinnacles.
Rising up to five meters in height, he pinnacles display a vast array of shapes.