Natural History - Fossil Turtle Specimen

Lot of two natural specimen fossils encased in stone matrix. Measure from 1/4" - 3 3/4" in height x 4 1/4" - 5" in length. No apparent markings. Condition: Good overall condition having normal surface

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]

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

Art by God, A Natural History Fossil Ammonite Specimen. This is a great pre historical conversation piece for the home or office. Museum quality and investment worthy. SHIPPINGHill Auction Gallery wil

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

Mid-Triassic Period, 240 million years BP. A fossil of Pecten sp. on a matrix of micaceous, fine-grained sandstone, from Yorkshire, with old adhesive label to back reading: 'Pecten, Robin Hood Bay, Yo

Jurassic Period, 200-145 million years BP. A sawn and polished pair of ammonite halves from Madagascar, showing its inner chambered structure, in an old white card tray with label reading: 'AMMONITE,

Eocene Period, 56-33 million years BP. An unidentified agatized Dicotaledon fruit specimen from the Western Sahara Desert, Morocco; supplied in a display case. 41 grams including box, 40mm (1 1/2"). F

Eocene Period, 58-36 million years BP. A rare, unidentified agatized dicotaledon fruit specimen from the Western Sahara Desert, Morocco in glazed display box. 52 grams, 77mm (box) (3"). From an old Br

Devonian Period, 416-359 million years BP. A large fossil coral colony specimen pair, polished on one side to reveal the detail and colour of the species Arachnophyllum pentagonam, from Assa Zag, West

Eocene Period, 56-33 million years BP. A fossil Diplomystus sp. fish, together with a partial specimen in rectangular matrix. 365 grams, 15.6cm (6"). From an old Lincolnshire collection collected 1980

Eocene Period, 55-33 million years BP. A group of three rare unclassified agatized Dicotaledon cone specimens clearly showing the external structures. 48 grams total, 4-5cm (1 1/2 - 2"). From an old B

Devonian Period, circa 417-354 million years B.P.. Each polished and cut from a single block containing multiple Orthoceras sp. and other fossil specimens. 1.95 kg total, 12.2 cm high (4 3/4 in.). Fro

Late Cretaceous Period, Cenomanian Stage, circa 100.5-93.9 million years B.P.. On a sedimentary matrix comprising three Carpopenaeus callirostris specimens. 123 grams, 69 x 66 mm (2 3/4 x 2 1/2 in.).

Cretaceous Period, 200-65 million years BP. Group comprising: a small ammonite, cut and polished in two halves, with two small fossil fish specimens, in matrix. 618 grams total, 3.2-14.7cm (1 1/4 - 5

Middle Ordovician Period, 400 million years BP. A group of two specimens of the trilobite Ogygiocarella debuchi with Gregory, Bottley, and Lloyd label reading: MID-ORDOVICIAN TRILOBITE, Ogygiocarella

Eocene Period, circa 56-33 million years B.P. Knightia alta specimen on a rectangular matrix. 200 grams, 11.7 cm (4 5/8 in.). From Wyoming (Green River Formation), USA. Acquired during 1980s. From the

Devonian Period, circa 417-354 million years B.P. Cut and polished from a single fossiliferous block and each side set with a large Goniatite sp. specimen. 3.4 kg total, 15.3 cm high each (6 in.). Fro

Dimension: 70.7x60.6mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australi

Oligocene-Miocene Period, 38-25 million years BP. An agatised fossil coral specimen with the face cut and polished to enhance the detail, from Tampa Bay, Ballast Point, Florida, USA. 237 grams, 108mm

Devonian Period, circa 417-354 million years B.P. Comprising three polished, dome-shaped masses, each with a central Goniatite sp. specimen. 368 grams total, 70-75 mm (2 3/4 - 3 in.). From the Atlas M

Cretaceous Period, circa 100 million years B.P.. Featuring two echinoid specimens in an irregular matrix. 2.8 kg, 17.5 cm (7 in.). From Morocco, North Africa. [No Reserve]

Carboniferous Period, circa 310 million years B.P. A group of three fern specimens including Alethopteris sp. and Sphenopteris laurenti. 281 grams total, 76-87 mm (3 - 3 3/8 in.). From the Middle Coal

Carboniferous-Jurassic, 359-145 million years BP. A group of seven brachiopod specimens, including four spirifers (two in matrix), and three terebratulids, in old white and brown card trays with A.B.