Natural history - a section of petrified vertebrae on

Miocene Period, 20 million years BP. A section of petrified wood, one side polished to show colours and structure. 1.43 kg, 26cm (10 1/4"). Property of a Kent, UK collector; acquired UK market, 1970-2

Jurassic Period, 199-145 million years BP. A sawn and polished section of a fossil wood (petrified wood) log from Patagonia retaining some original grain, in old white card tray with old Gregory, Bott

Triassic, 220 million years BP. A slice of petrified wood from Madagascar; accompanied by descriptive label. 85 grams, 32mm (3 1/4"). Property of a London collector; acquired London, 1980s. [No Reserv

Upper Jurassic Period, 150 million years BP. Two Ichthyosaur vertebrae displayed on a matrix from the Kimmeridge Clay, Dorset, England. 3.8 kg, 26cm (10 1/4"). From an old Bristol paleontological coll

Triassic Period, 250-200 million years BP. A large section of fossilised wood with one side polished from Madagascar, with some fine detail. 1.3 kg, 11cm (4 1/4"). From an old Bristol paleontological

Triassic Period, 250-200 million years BP. A cut and polished section of fossilised tree from Madagascar, with some fine detail. 1.5 kg, 14.5cm (5 3/4"). From an old Bristol paleontological collection

Jurassic Period, 199-145 million years BP. Two dorsal vertebrae from the Ichthyosaur marine reptile. 559 grams, 8.5cm (3 1/4"). Property of a Lincolnshire, UK, gentleman; acquired on the UK art market

Devonian Period, 417-354 million years BP. A large group of specimens of Gissocrinus goniodactylus Crinoid stem sections from Devonian Period of Morocco. 1.13 kg total, 10-65mm (1/4 - 2 3/4"). From an

Upper Jurassic Period, 150 million years BP. A fossil dorsal vertebra from an ichthyosaur, from the Kimmeridge Clay, Weymouth, Dorset, UK, mounted on a custom-made display stand. 640 grams, 15.5cm inc

Six Natural History SpecimensGroup of six various natural history specimens: four petrified wood pieces, stromatolite slice and orthoceras plaque; L: 11 3/4" (longest)

Each with at least one polished face to reveal the attractive banding; some pierced for threading. 244 grams total, 17-46 mm (5/8 - 1 3/4 in.). From Democratic Republic of the Congo.Ex Mineral Imports

Cretaceous Period, 80 million years BP. A sequence of six fossil predatory fish vertebrae Xiphactinus sp., skillfully developed from the matrix; with an A4 laminated display card with illustrations of

Eocene Period, 56-33 million years B.P. Comprising four Otodus obliquus vertebrae. 387 grams total, 75-87 mm (3 - 3 3/8 in.). From a Cambridgeshire, UK, collection.[4, No Reserve]

Pleistocene Period, circa 40.000 years B.P. A large woolly rhinoceros Coelodonta antiquitatis vertebra. 564 grams, 16 cm (6 1/4 in.). From Brown Bank, off Lowestoft, UK.Acquired before 1960.From an ol

Upper Palaeocene, Thanetian Stage, circa 56 million years B.P.. From Otodus obliquus Agassiz 1843 (mackerel shark). 234 grams, 79 mm (3 1/8 in.). From the Ouled Abdoun Basin Formation (Phosphate beds)

Goode, George Brown, The Fisheries and Fishery Industries of the United States, Section 1, Natural History of Useful Aquatic Animals, complete in 2 parts: Text and Plates, 1884, First edition, hardcov

A group of six cut and polished purple agate geode sections, with exposed crystals; colour-enhanced. 1.39 kg total, 69-94 mm (2 3/4 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (

Pleistocene, 1 million years BP. A group of three Bison bonasus bison vertebrae; mounted on a custom-made display stand. 869 grams, 33cm wide including stand (13"). From an old Bristol palaeontologica

Cretaceous Period, circa 90 million years B.P.. A fossilised jaw section with indentations. 270 grams, 10 cm (4 in.). From the Tegana Formation, Kem-Kem Basin, Morocco, North Africa.From an old German

Late Cretaceous Period, 70 million years BP. A polished section of the Baculites compressus straight ammonite showing the structure; with label. 122 grams, 80mm (3"). Property of a Kent, UK collector;

Circa 100 million years B.P.. Displaying fossilised bark and tree rings in red, burgundy, orange and black. 2.5 kg, 15 cm wide (6 in.). From the Bagua Grande region, Peru.Ex old Spanish private collec

A group of eight agate geode sections. 3.5 kg total, 85-96 mm (3 3/8 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [8, No Reserve]

LARGE NATURAL HISTORY MATERIAL COLLECTIONIncluding blister pearl, intact seahorse, petrified wood, pottery shards, large assortment of shells, and more.

A group of three highly-polished pallasite meteorite slices, all triangular in section, showing numerous olivine inclusions in a base of iron-nickel. 38 grams total, 45mm average (1 3/4"). Property of