Nicknamed Pearl, the reptile was seen swimming around in the Adelaide River near Darwin on Sunday.
Palaeontologists have identified a new species that could shed light on the origins of crocodiles.
A man in Edinburgh got the fright of his life on Tuesday when he found the reptile in his shopping.
Scientists have discovered that not all prehistoric marine reptiles laid eggs like crocodiles do.
The large green reptile slithered out of a ceiling compartment during a routine flight to Mexico City.
A flying reptile with a wingspan of only 1.5 meters has been identified from fossils found in Canada.
Shoppers in Thailand were left terrified when the huge reptile took up residence inside the shop.
The prehistoric aquatic reptile fossil, which was found in a quarry, dates back over 200 million years.
The massive reptile took golfers completely by surprise as it casually strolled towards a nearby lake.
Using DNA testing, scientists have identified at least three of the deadly reptiles in Florida's swamps.
The gargantuan reptile, which measured 37 meters in length, was recently unearthed in Argentina.
New evidence suggests that Australia was once home to huge reptiles that lived alongside early humans.
A prehistoric reptile the size of a cow may have been the first to ever stand upright on four limbs.
A new study has suggested that the prehistoric reptiles were more likely to be warm-blooded like mammals.
The gargantuan reptile was related to the Titanosaurs and roamed the Earth around 100 million years ago.
The fossil of a previously unknown species of prehistoric aquatic reptile has been found at a museum.
Palaeontologists have discovered the remains of a carnivorous reptile dating back 240 million years.
The fossilized remains of a large dolphin-like creature have been found on the Isle of Skye.
A huge winged reptile from Earth's past is very similar to the flying creatures in the movie 'Avatar'.
The enormous prehistoric reptile was so massive that it weighed the same as seven Tyrannosaurus rex.