Natural History - Fossil Amazon Rainforest Fossil Tree Trunk Section

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.. 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

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 cut section of fossilised tree with visible grain. 589 grams, 8cm (3"). Property of a London gentleman; acquired in the 1970s. [No Reserve]

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;

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

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

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

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

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/

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

8 in. (3.06 kg, 20.5 cm)DESCRIPTION:A large cut section of Arizona fossil wood. Arizona, USA.Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's).

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

Permian Period, 285 million years BP. A complete preserved Mesosaurus brasiliensis skeleton in limestone; from the Irati-Formation, Parana Delta, Brazil. 4.4 kg, 48cm x 33cm (19 x 13"). From an old Br

Late Permian-Early Triassic Period, circa 252-250 million years B.P. In an irregular matrix. 12.2 kg, 43 cm (17 in.). From Madagascar. From a Cambridgeshire, UK, collection.This lot has been checked a

Devensian Period, 110,000-12,000 years B.P. Including the claws and bones, held together by an internal metal frame. 608 grams, 33 cm (13 in.). Ex Lincolnshire, UK, collection.

This pear shaped mirror is framed by a thick cross section of a natural wood, tree trunk. At it's thickest, the wood frame is nearly 7" deep. Heavy. Weight: 50-60lbs. Issued: 21st c. Dimensions: 6"L x

Eocene Period, 58-36 million years BP. A fossil mud lobster (crayfish) Thalassina sp., in matrix. 87 grams, 14cm (5 1/2"). From an old Bristol paleontological collection; acquired 1950s-1960s; from Au