Ancient Art, Antiquities, Books, Natural History, Stamps & Coins

An oval sandstone matrix set with six teeth. 883 grams, 17 cm



Acquired on the UK fossil and mineral market. Property of a West Sussex, UK, gentleman.

The Mosasaur is an extinct, large marine reptile with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.

Oval matrix with two Knightia alta specimens with a partial fossil on the reverse. 377 grams, 19.3 cm



From Green River formation, Wyoming, USA. From a Lincolnshire, UK, collection.

In southwest Wyoming (and parts of Colorado and Utah), in the Green River Formation, are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Uinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary period. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time.

Three irregular matrices containing dawn redwood fossils, showing twig and needle leaves. 100 grams total, 50-60 mm



From a Lincolnshire, UK, collection.

Comprising three matrices, each with a grasshopper specimen. 427 grams total, 89-94 mm



From the Crato Formation, Arripe Basin, Brazil. Acquired on the UK art market. Property of an Essex, UK, gentleman.

Shallow dish carved from fossiliferous stone with a raised Orthoceras sp. specimen. 485 grams, 14 cm



Ex Cambridgeshire, UK, collection.

Cluster of tabular lab-grown crystals set on a matrix. 65 grams, 47 mm



From the collection of Mr Carlos Bahamonde, Manchester, UK.

Polished specimen showing attractive pattern formation. 135 grams, 84 mm



From a Cambridgeshire, UK, collection.

Fragment of the mandible from a woolly mammoth (E. primigenius) showing curvature. 1.33 kg, 29 cm



From Doggerland, the now disappeared land bridge between the UK and the Netherlands. Dredged from the North Sea by Dutch fisherman. Property of a Bristol, UK, gentleman collector.

Comprising two specimens, each with a characteristic ribbed carapace; repaired. 179 grams total, 72-76 mm



Ex Cambridgeshire, UK, collection.

The vertebra with concave depressions on both faces, two pairs of small processes on the outer face and a pair of ventrolateral crests. 1.16 kg, 14.1 cm wide



From Farringdon Clay, Oxfordshire, UK. Property of a Bristol, UK, gentleman collector.

Liopleurodon is an extinct genus of pliosaurid plesiosaurs that could reach over 8 meters in length. It had two pairs of flippers, a short neck and a long head. Various studies have shown it to have been an ambush predator that fed on cephalopods, marine reptiles and fish.

From Mosasaur prognathodon showing dark brown enamel, repaired. 76 grams total, 50-52 mm



From a Cambridgeshire, UK, collection.

The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.

Sub-translucent orange amber with a large fly and other inclusions. 19.7 grams, 72 mm



From a UK collection formed in the 1980s. Property of an Essex, UK, gentleman.