Natural History - Historic 'Scotland' Specular Haematite Mineral Specimen

A pair of Charonosaurus sp. hadrosaur eggs on a matrix retaining evidence of the original leathery surface. 8.85 kg, 27.5 cm



Acquired 1983-1990. Private collection, Hove, UK.

Hadrosaurs were large dinosaurs, growing up to 10 metres in length, belonging to the ‘Duck-Billed’ group of dinosaurs. They are considered the ‘herd animal’ of the Cretaceous, having been found buried together in their thousands. Dinosaur egg fossils are known from approximately two-hundred sites around the word, particularly in Asia. This nest comes from the Xixia Formation, Henan region of China, which produces some of the best preserved eggs in the world. These eggs can yield entire embryos within them, making them an essential tool for understanding the biology of these creatures.

Comprising small and larger pieces of pink dolomite, some with small pyrite crystals. 765 grams total, 20-40 mm



Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).

A roughly oval matrix with a Knightia alta fossil fish. 70 grams, 10.5 cm



Acquired on the UK art market. Property of a Essex, UK, collector.

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 Ulinta, 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 time. 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.