Natural History - Indonesia Fossil Tree Section

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

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

Triassic Period, 251-199 million years B.P.. Cut in varying lengths, with some thicker sections included. 1.13 kg total, 33-49 mm (1 1/4 - 2 in.). From Madagascar. Ex Mineral Imports, London, UK. Greg

Jurassic Period, 199-145 million years BP. A cut section of fossilised tree with visible grain. 589 grams, 8cm (3"). Property of a London gentleman; acquired in the 1970s. [No Reserve]

Triassic Period, circa 250-200 million years B.P. A cut and polished section of fossilised tree with some fine detail. 348 grams, 13.4 cm (5 1/4 in.). From Madagascar. From a Cambridgeshire, UK, colle

Triassic Period, circa 250-200 million years B.P. A cut and polished section of fossilised tree with some fine detail. 329 grams, 15 cm (5 7/8 in.). From Madagascar. From a Cambridgeshire, UK, collect

20 million years BP. A fossilised hardwood branch section with one polished end, from Banten, Indonesia; mounted on a custom-made stand. 2.2 kg, 18.5cm (7 1/4"). Property of a Lincolnshire, UK, gentle

20 million years BP. A fossilised hardwood branch section with one polished end, from Banten, Indonesia. 1.4 kg, 11cm (4 1/4"). Property of a Lincolnshire, UK, gentleman; acquired on the UK art market

Triassic Period, 251-199 million years B.P.. Polished on one side to show the dark brown banding with a central 'lava-like' dark red banding radiating from a small quartz filed cavity. 753 grams, 20 c

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;

Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished clear quartz pebbles. 449 grams total, 19 cm (7 1/2 in.). From Brazil.Ex Mineral Imports, London, UK

The irregular geode matrix with lavender coloured amethyst crystals; the metal branches tipped with polished light-coloured citrine pebbles. 727 grams, 18.3 cm (7 1/8 in.). From Brazil.Ex Mineral Impo

Cretaceous Period, 145-65 million years B.P. The spine section comprising sixteen large, perfectly lined dorsal vertebrae with transverse processes with another at each end lying flat, various other v

Carboniferous Period, 350 million years BP. An outer section of the seed fern Neuropteris semirecticulatum with good preservation of the attachment points for the seed-bearing fronds, with old Gregory

Ammonite fossil, Jurassic to Cretaceous period, the shelled cephalopod in two sections, on a gilt metal stand. [5 1/2" H x 3 1/2" W x 3" D].

A group of ten fossil branch sections of varying length and thickness. 1.2 kg total, 6.3-10.7 cm (2 1/2 - 4 1/4 in.). From Madagascar. Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's).

Carboniferous, 359-299 million tears BP. A group consisting of four specimens of stigmaria, the roots of coal forest lycopsid trees such as Sigillaria and Lepidodendron, each with paper label attached

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

Cretaceous Period, circa 150 million years B.P.. Cleoniceras sp. displaying the distinctive pattern of the cross-section chambers. 269 grams total, 10.5-10.7 cm (4 1/8 - 4 1/4 in.). From Madagascar.Co

Middle Cretaceous Period, circa 150 million years B.P. Cleoniceras sp. displaying the distinctive pattern of the cross-section chambers, some iridescence to outer surfaces. 220 grams, 95 mm each (3 3/

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

Cretaceous Period, Albian Stage, 113-100 million years BP. A group of eight small A-grade cut and polished Cleoniceras sp. ammonites from Madagascar, with the distinctive pattern of the cross-section

A medium size gemstone tree consisting of a brass trunk and branches tipped with polished citrine, mounted on a section of amethyst geode. 518 grams, 18 cm high (7 in.). Mineral Imports, London, UK.Gr