The Gregory, Bottley & Lloyd, Natural History Auction

Late Triassic Period, 225 million years BP. A large limb section of petrified wood. 1.6 kg, 14cm (5 1/2"). From a historic ‘Victorian Museum’ col...

Triassic Period, 252-201 million years BP. A fine slice of polished fossilised wood showing growth rings and bark texture. 455 grams, 14.7cm (5 3...

A museum-quality reproduction of a Homotelus bromidensis trilobite mortality plate from Middle Ordovician, Blackriverian Stage (460 million years ...

Jurassic Period, 199-145 million years BP. A detailed and colourful fossil pine cone pair Araucaria Mirabilis; in white card tray with old Gregory...

Jurassic Period, 199-145 million years BP. A very large thick, cut and polished, full round section of a fossil tree from Madagascar, showing good...

A museum-quality reproduction of an extinct genus of bird Calciavis grandei from the EocenePeriod, 50 million years ago, of the Green River Format...

Cretaceous Period, Albian Stage, 113-100 million years BP. An A-grade naturally iridescent rainbow shell Cleoniceras besairiei ammonite from Madag...

Pliocene Period, 5.2 - 2.5 million years BP. A mastodon fossil bone carving from the island of Java, a carved face. 105 grams, 77cm (3"). From an...

Triassic Period, 250-200 million years BP. A slice of polished fossilised Woodworthia sp. early pine wood from Zimbabwe, Africa. 315 grams, 12.5c...

Pleistocene Period, 2.6 million years-11,700 years BP. A fossil bivalve from the Tamiami Formation, Venice, Florida, USA. 1.3 kg, 13cm (5"). From...

Jurassic Period, Bacocian stage, 168-172 million years BP. A large polished oolite Sloenbachia sp. chambered ammonite, discovered at Arbala, Middl...

Eocene Period, 58-36 million years BP. A group of two fossil Knightia eocaena fish each on a shale matrix 269 grams total, 10.4-11.5cm (4 1/2"). ...

Ordovician to the Permian Period, 485-358 million years PB. A fossil of tabulate corals, defined by a skeleton of calcite with a 'cavity' to one s...

Jurassic Period, 200-145 million years BP. An A-grade cut and polished ammonite from Madagascar, showing internal chambers and crystal formation, ...

Jurassic Period, 200-145 million years BP. An A-grade cut and polished ammonite from Madagascar, showing internal chambers and crystal formation, ...

Eocene Epoch, 56-49 million years BP. A group of six Knightia sp. fossil fish preserved in calcareous shale. See Grande, L. The paleontology of th...

200-144 million year BP. A cut and polished ammonite pair showing internal chambers and crystal structure, in white card tray with label reading: ...

Eocene Period, 58-36 million years BP. A group of three fossil Knightia alta fish and one partial in matrix from Warfield's Quarry, Kemmerer, Gree...

Triassic Period, 251-199 million years BP. A group of ten cut and polished slices of petrified wood showing varying colours to the inside and bark...

Cretaceous Period, Albian Stage, 113-100 million years BP. A group comprising: two natural iridescent rainbow shell Cleoniceras besairiei ammonite...

Late Triassic Period, 225 million years BP. A large polished trunk section of petrified wood with veins of quartz crystals in variegated colour se...

Jurassic Period?, 203-145 million years BP. A mortality specimen of the brittle star Furcaster sp?, comprising 11 'stars' averaging about 2.2 cm a...

Cretaceous Period, Albian Stage, 113-100 million years BP. A group of three A-grade naturally iridescent rainbow-shell Cleoniceras besairiei ammon...

Jurassic Period, Inferior Oolite, Sauzei Zone, 200-161 million years BP. A display of an Emileia (Otoites) contractus ammonite and one partial, a ...

Miocene Period, 23-5.3 million years BP. A group of three porpoise lumbar vertebra from the Pungo River Formation, Lee Creek, Aurora, North Caroli...

Middle Jurassic Period, 170 million years BP. A group comprising: a Parkinsonia sp. ammonite from Madagascar; another unidentified ammonite; each ...

Lower Jurassic Period, 199-175 million years BP. A free-standing display of two, and one partial, Eleganticeras elegantulum ammonites from Whitby,...

Eocene Period, 58-36 million years BP. A group of two fossil Knightia eocaena fish each on a shale matrix, in white card tray with label reading: ...

Jurassic Period, Bacocian stage, 168-172 million years BP. A large polished oolite Sloenbachia sp. chambered ammonite, discovered at Arbala, Middl...

Early Jurassic Period, Lower Lias stage, 200-195 million years BP. A group of ten small pyrite ammonites, mainly Crucilobiceros densinodulum and P...

Early Jurassic Period, Lower Lias stage, 200-195 million years BP. A group of ten small pyrite ammonites, mainly Crucilobiceros densinodulum and P...

Eocene Period, 58-36 million years BP. A fossil Priscacaraliops sp. fish from the Green River Formation, Lincoln County, Wyoming, USA. 745 grams,...

Devonian Period, 417-354 million years BP. A display piece of six polished Orthoceras sps specimens from the Atlas Mountains, Morocco, Northern Af...

Cretaceous Period, Albian Stage, 113-100 million years BP. A group of four naturally iridescent rainbow-shell Cleoniceras besairiei ammonites from...

Jurassic Period, 199-145 million years BP. A natural iridescent shell Parkinsonia sp. ammonite, in white card tray with label reading: 'Ammonite, ...

Jurassic Period, 199-145 million years BP. A fine example of the ammonite Perisphinctes sp. with much of the original shell material remaining, in...

Jurassic Period, 199-145 million years BP. A fine example of the ammonite Perisphinctes sp. with much of the original shell material remaining, in...

Cretaceous Period, Albian Stage, 113-100 million years BP. A group of five A-grade cut and polished Desmoceras latidorsatum ammonites from Madagas...

Eocene Period, 58-36 million years BP. A fossil Knightia eocaena fish on a shale matrix, in white card tray with label reading: 'Fossil fish, Knig...

Early Jurassic Period, Lower Lias stage, 200-195 million years BP. A pyrite Crucilobiceros densinodulum ammonite from Pentacrinites Band, Stonebar...

Eocene Period, 58-36 million years BP. A slice of polished jasperised conifer wood from Hampton Butte, Central Oregon, USA, with fine detail, prim...

Cretaceous Period, Albian Stage, 113-100 million years BP. A group of four naturally iridescent rainbow-shell Cleoniceras besairiei ammonites from...

Proterozoic and Archaean eras, 3,900 million years BP. A group of micro-fossils in the form of two Stromatolite blocks from South Africa. 249 gra...

Triassic Period, 252-201 million years BP. A fine slice of polished fossilised wood showing growth rings and bark texture. 395 grams, 14cm (5 1/2...

Cretaceous Period, Albian Stage, 113-100 million years BP. A large A-grade polished Cleoniceras sp. ammonite from Madagascar, polished through muc...

Devonian Period, 417-354 million years BP. A large Cambropallas telesto trilobite on a matrix from Djbel Ougrat, Morocco. 2.3 kg, 28.5cm (11 1/4"...

Eocene Period, 58-36 million years BP. A group of two fossil Knightia eocaena fish each on a shale matrix, in white card tray with label reading: ...

Upper Devonian Period, 385-359 million years BP. A group comprising: aParalejurus dormizzeri trilobite on matrix; a Crotalocephalina Gibba trilobi...

Upper Devonian Period, 385-359 million years BP. A Phacops rana trilobite with a Crotalocephalina Gibba trilobite both on a matrix from the Atlas ...

Carboniferous Period, 345-280 million years BP. A white Pecopteris sp. fern on matrix together with other plant specimens from St.Clair, Pennsylva...

200-144 million year BP. A cut and polished ammonite pair showing internal chambers and crystal structure, in white card tray with label reading: ...

Jurassic Period, 199-145 million years BP. A slice of orange petrified wood with one cut and polished face. 1.6 kg, 17cm (6 1/2"). From a histori...

Upper Devonian Period, 385-359 million years BP. A Reedops cephalotes trilobite on a matrix from the Upper Atlas Mountains, Hamar Laghdad Formatio...

200-144 million year BP. A cut and polished ammonite pair showing internal chambers and crystal structure, in white card tray with label reading: ...

200-144 million year BP. A cut and polished ammonite pair showing internal chambers and crystal structure, in white card tray with label reading: ...

Cretaceous Period, Albian Stage, 113-100 million years BP. A large A-grade cut and polished Cleoniceras sp. ammonite from Madagascar with the dist...

200-135 million years BP. A group of six branch sections of petrified wood, each in white card tray with label reading 'Petrified wood, 135-200 Mi...

Cretaceous Period, Albian Stage, 113-100 million years BP. A polished Cleoniceras sp. ammonite from Madagascar, displaying the original shell and ...

Cretaceous Period, Albian Stage, 113-100 million years BP. A large A-grade cut and polished Cleoniceras sp. ammonite from Madagascar, with the dis...

Cretaceous Period, Albian Stage, 113-100 million years BP. A large A-grade cut and polished Cleoniceras sp. ammonite from Madagascar, with the dis...