Sold2023Natural History - Polished Fossil Ammonite PlateJurassic Period, circa 199-145 million years B.P. A composite plate containing a large number of variously sized ammonites, polished upper face. 835 grams, 24.7 cm (9 3/4 in.). From Madagascar. From aSee Sold Price
Sold2023Natural History - Polished Douvilleiceras Fossil Ammonite GroupMiddle Cretaceous Period, circa 150 million years B.P. Comprising three Douvilleiceras sp. specimens (sometimes known as a Goat Horn), polished to reveal rich calcites and suture patterns. 160 grams tSee Sold Price
Sold2024Natural History - Cut and Polished Fossil AmmoniteCretaceous 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.CoSee Sold Price
Sold2023Natural History - Cut and Polished Fossil AmmoniteMiddle 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/See Sold Price
Sold2023Natural History - Cut and Polished Fossil AmmoniteJurassic Period, 199-145 million years B.P. A pair of cut and polished fossil ammonite halves, each displaying the gas chambers; possibly Cleoniceras sp. 172 grams total, 95-97 mm (3 3/4 - 3 7/8 in.).See Sold Price
Sold2023Natural History - Cut and Polished Fossil AmmoniteMiddle Cretaceous Period, 150 million years B.P.. Polished to reveal the distinctive structure of the Cleoniceras sp. chambers, some iridescence. 124 grams total, 77-81 mm (3 - 3 1/8 in.). From MadagaSee Sold Price
Sold2017Natural History - Cut and Polished Fossil AmmoniteCretaceous 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-sectionSee Sold Price
Sold2023Natural History - Polished Goniatite Button Fossil Ammonite GroupDevonian Period, 417-354 million years B.P. A group of five polished Goniatite sp. fossil ammonite 'buttons'. 590 grams total, 73-86 mm (2 7/8 - 3 3/8 in.). From Morocco, North Africa.Ex CambridgeshirSee Sold Price
Sold2017Natural History - Polished Ammonite Fossil SpecimenJurassic 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,See Sold Price
Sold2015Natural History - Fossil Polished AmmoniteBacocian stage of the Jurassic Period, 168-172 million years BP. A large polished chambered ammonite Oolite sloenbachia sp. from Arbala, Middle Atlas Mountains, Morocco. 740 grams, 15cm (6"). PropertySee Sold Price
Sold2016Natural History - South Dakota Fossil Ammonite SectionLate 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;See Sold Price
Sold2019Natural History Fossil Fish and Ammonite GroupCretaceous 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 - 5See Sold Price
Sold2023Natural History - Fossil Goniatite Bookend PairDevonian Period, 417-354 million years B.P. Comprising a pair of polished fossiliferous matrices set with a polished Goniatite ammonite. 3.4 kg total, 15 cm high (5 7/8 in.). From a Cambridgeshire, UKSee Sold Price
Sold2023Natural History: Fossil AmmoniteAmmonoidea coiled shell cephalopod, probably Devonian to late Cretaceous period. [9 1/4 x 12 1/2 x 3 3/4 inches].See Sold Price
Sold2023Natural History - Fossil Ammonite GroupJurassic Period, circa 200 million years B.P. Promicroceras planicosta with iron stained surface giving a beautiful contrast in colour, from the Lower Lias, Obtusum Zone. 42.53 grams, 67 mm (2 3/5 in.See Sold Price
Sold2023Natural History - Polished Ammonite PlateJurassic Period, 199-145 million years B.P. Comprising a composite of various sized ammonites with polished upper surface. 778 grams, 23 cm wide (9 in.). From Madagascar. From a Lincolnshire, UK, collSee Sold Price
Sold2023Natural History - Polished Fossil Goniatite Book EndsDevonian 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.). FroSee Sold Price
Sold2023Natural History - Polished Fossil Goniatite and Orthoceras StandDevonian Period, circa 417-354 million years B.P. Both set on a textured freestanding matrix and polished to reveal the internal gas chambers. 810 grams, 16 cm high (6 1/4 in.). From a Cambridgeshire,See Sold Price
Sold2024Natural History - Polished Fossil Goniatite GroupDevonian 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 MSee Sold Price
Sold2019Natural History - Polished Fossil OrthocerasOrdovician Period, 360 million years BP. A large cut and polished straight cephalopod Orthoceras sp. 295 grams total, 12.5cm (5"). From an old Lincolnshire collection 1980s; from Erfoud, Morocco, NortSee Sold Price
Sold2021Natural History Huge 18" Fossil Ammonite SpecimenArt 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 wilSee Sold Price
Sold2023Natural History - Large Polished Fossil 'Sand Dollar' Multi DisplayMiocene Period, circa 25 million years B.P.. Composed of several fossil sea urchins or sand dollars in a matrix. 4.6 kg, 34.5 cm (13 5/8 in.). From France.See Sold Price
Sold2015Natural History - Polished Orthoceras Fossil BlockDevonian Period, 417-354 million years BP. A rectangular stone block displaying orthoceras fossils, polished on all six faces. 8 kg, 30 x 7 x 14cm (11 3/4 x 2 3/4 x 5 1/2"). Property of a London gentlSee Sold Price
Sold2016Natural History - Cleoniceras Polished Ammonite PairCretaceous Period, Albian Stage, 113-100 million years BP. A group of two A-grade, cut and polished Cleoniceras sp. ammonites from Madagascar, polished through much of the shell to reveal the calciteSee Sold Price
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A quantity of Brachiopod fossils, together with four sections of£30
May 19Heartland Artifact Auctions Inc4.1/4" Highly Polished Split Ammonite Fossil, beautiful color, with quarts inclusions$10
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: Three polished hardstone specimen spheres to include a£30
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: Three polished hardstone specimen eggs to include red jasper,£30
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: Three polished hardstone specimen eggs to include a lapis lazuli£30
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A polished agate and quartz hardstone specimen geode. Approx. 5£30
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A fossil specimen of a fish. Approx. 8 1/2" wide Please Note -£30
May 12Neo FineArts IncRare Natural Fossilized Jurassic Ammonite Fossil Specimen with Small Leather Bag$40
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: Four assorted polished hardstone specimen eggs. Largest approx.£30
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A large polished hardstone specimen sphere, possibly green£40
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A quantity of polished hardstone specimen spheres, examples to£30(1 bid)
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A quantity of polished hardstone specimens, possibly Amazonite.£20
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A quantity of polished hardstone specimen eggs, examples to£20
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A quantity of polished hardstone specimen eggs, possibly lapis£20
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A quantity of polished hardstone slices, to include amethyst,£30
6 days LeftClaydon Auctioneers LtdNatural History / Geology Interest: A quantity of assorted polished hardstone eggs to include£30