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Abelisaurus is a dinosaur about which very little is known. An almost complete skull, measuring 85 cm long, was discovered in Argentina in 1985, and this indicates that it was a carnivore of the cretaceous period.
 Research Abelisaurus
Acanthopholis was a dinosaur of the Cretaceous period, remains of which were first discovered in 1865 at a beach near Folkestone, England by Professor T H Huxley. Acanthopholis measured about 5.5 metres in length and is believed to have been protected by armour consisting of rows of oval plates set in the skin and sharp spikes along the middle of its back.
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Acrocanthosaurus was a dinosaur of the Cretaceous period, remains of which were first discovered in 1950 in Oklahoma, USA, Acrocanthosaurus was a carnivore, about 12 metres long, believed to walk semi-upright on two hind legs and had 30 cm long spines on its backbone which may have supported a ridge or sail along its back.
Research Acrocanthosaurus
Acrogaster is a genus of fossil fish of the order Beryciformes, found in the Cretaceous period.
Research Acrogaster
Alamosaurus was a dinosaur of the late Cretaceous period, remains of which were first discovered near to the Alamo fort in Texas, USA, in 1922. A herbivore,
Alamosaurus was 21 metres long, walked on four legs and had a long neck and tail.
Research Alamosaurus
Albertosaurus was a dinosaur from the late Cretaceous period, remains of which were first found in 1905 in the USA. A carnivore. Albertosaurus walked on its hind legs and had small, relatively poorly formed forward legs. In 1923a skeleton of a juvenile Albertosaurus was discovered and at the time identified as a distinct species and given the name Gorgosaurus, however it was later found that the animal grew heavier and stronger as it aged, and the skeleton was that of an Albertosaurus.
Research Albertosaurus
Anatosaurus was an amphibian, webbed-hand dinosaur of the Cretaceous period, remains of which were first found in 1942. Anatosaurus was a herbivore, and from extensive remains found including mummified samples with skin connected, we know that it was between 10 and 13 metres long, walked on its hind legs and had forelegs adapted a little like hands, the fingers of which were covered in a webbed skin, presumably to assist in swimming. Anatosaurus had a low, broad skull with a snout similar to a duck's.
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Anchiceratops was a dinosaur of the Cretaceous period. A herbivore,
Anchiceratops was about 5 or 6 metres long with long horns protruding forward above its eyes and a long neck-frill with knobs and spines pointing backwards. Remains of Anchiceratops were first discovered in 1914.
Research Anchiceratops
Ankylosaurus was a dinosaur of the Cretaceous period. Remains of Ankylosaurus have been found in the north-west USA, first in 1908. It was about 10 to 17 metres long, with a long clubbed tail, short neck and the body was protected by spines and bony plates. A herbivore, Ankylosaurus walked on four legs.
Research Ankylosaurus
Antarctosaurus was a dinosaur of the Cretaceous period. Remains were first found in 1929, and have been found in South America and possibly Asia. Antarctosaurus was a herbivore about 18 metres long, with a very long tail, long neck and walked on all fours.
Research Antarctosaurus
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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