Natural History - Two Glass Display Bases

Comprising a mixed group of eight fossils in eight card trays, different species and types including: Rugose Coral from Toddington, Derbyshire; Parinoceramus ventricosus and Aegoceras sp. ammonite from Blockley in Gloucestershire; Hysteroceras sp. ammonites from the foreshore at Folkestone, Kent; Dactylioceras commune from Staithes, Yorkshire; Hildoceras bifrons from near Eype, Dorset; and Dactylioceras sp. ammonite from Seavington St. Michael, Dorset. 1.2 kg total, 2-10.5 cm



From various sites in the UK. From a Norfolk, UK, collection.

Knightia alta specimen on a rectangular matrix. 397 grams, 13.3 cm



From Wyoming (Green River Formation), 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 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.

Each with well-formed white to clear crystals; in labelled cardboard boxes. 434 grams total, 57-72 mm



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