Rupert van der Werff, Summers Place Auctions specialist says: ''Owing to the relocation of the zoo this collection will be offered on a no reserve basis so there may be a chance to secure something truly significant for a bargain price! You will be able to buy individual pieces or why not try and bid for all the lots and have your very own Museum?''

The remains of a duck-billed dinosaur, Harpocrasaurus stibengi, named ''Freya,'' which is almost as big as a T-Rex and lived 75 to 67 million years ago in the Late Cretaceous will be part of the auction. It was not until the 1990's that the remains of this dinosaur were discovered in North America. It is around 7.5m long and 3 m high and would have weighed around 4 tonnes. The skeleton of the bipedal/quadrupedal herbivore is virtually complete, so it's no wonder Freya is estimated to sell in the region of £50 000 to 80 000 ($72 094-115 351.)

The skeleton of a Hoplophoneus, a sabre-toothed cat, which was part of an extinct group of predatory mammals that were characterized by their long, curved sabre-shaped canine teeth will also feature. These large teeth extended from the mouth even when it was closed and the animals were found worldwide from the Eocene epoch to the end of the Pleistocene epoch 11 000 years ago. This example is estimated at £6 000 to 10 000 ($8 651-14 418.)

Errol Fuller, Summers Place Auctions' Natural History curator, says: ''A comprehensive selection of other fossils complete a quite remarkable collection which covers a pretty wide area of the fossil record. Included in the collection are many specimens which could be purchased then, but which now are not available such as South American pine cones.''