Sold2023Natural History - Fossil Seed Fern PairMiddle Pennsylvanian Period, circa 300 million years B.P.. Comprising two pairs of Pecopteris sp. 131 grams total, 54-65 mm (2 1/8 - 2 1/2 in.). From the Mazon Creek Fossil Beds, Braidwood, Illinois,See Sold Price
Sold2015Natural History - Neuropteris Fossil FernEarly Carboniferous Period, 300 million years BP. A fossil of the seed fern Neuropteris cordata comprising a stalk of the plant to one face and a stalk and frond imprint to the other; with old GregorySee Sold Price
Sold2015Natural History - Neuropteris Fossil FernCarboniferous 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 GregorySee Sold Price
Sold2023Natural History - British Fossil Fern GroupCarboniferous 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 CoalSee 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 - Orthoceras Fossil Book End PairDevonian Period, 417-354 million years B.P. A pair of polished fossil book ends, each trapezoidal and displaying a raised Orthoceras sp. fossil. 2 kg total, 12 cm high each (4 3/4 in.). From Morocco,See Sold Price
Sold2023Natural History - Large Fossil Echinoid Display PairCretaceous 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]See Sold Price
Sold2023Natural History - British Dactylioceras Fossil Ammonite PairJurassic Period, circa 200-190 million years B.P.. The matrix with two Dactylioceras tenuicostatum fossil ammonite specimens. 1.6 kg, 14 cm (5 1/2 in.). From the Holderness Coast, Yorkshire, UK. [No RSee Sold Price
Sold2019Natural History - Large Whitby Fern FossilMiddle Jurassic, Dogger Formation, 174-163 million years BP. A large split nodule showing negative and positive aspects of multiple fossil fern leaves. 402 grams, 11.5cm (4 1/2"). Property of a NorthSee Sold Price
Sold2023Natural History - Fossil Dicranurus TrilobiteDevonian Period, 417-354 million years B.P. Showing the pair of horn-like spines behind the glabellum, specific for Dicranurus monstrosus trilobite; on a matrix. 468 grams, 13.2 cm (5 1/4 in.). From aSee Sold Price
Sold2023Natural History - Fossil Shrimps in MatricesCretaceous Period, 145-65 million years B.P. A pair of rectangular sedimentary matrices, each containing a fossil shrimp. 139 grams total, 56-71 mm (2 1/4 - 2 3/4 in.). From Lebanon.Ex Lincolnshire, USee Sold Price
Sold2015Natural History - Fossil Coral ColonyDevonian 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, WestSee Sold Price
Sold2022Fern, Fossil, Rock, Natural, Collectible, Specimen,Fossil Fern Pairs Mazon, Illinois 300 M.Y.O. Pecopteris Annularia NeuropterisSee Sold Price
Sold2023Natural History - Elrathia Fossil TrilobitesMiddle Cambrian Period, circa 500 million years B.P. A pair of irregular matrices, each containing an Elrathia sp. fossil trilobite. 160 grams total, 62-83 mm (2 3/8 - 31/4 in.). Ex Lincolnshire, UK,See 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
Sold2021Fern, Fossil, Rock, Natural, Collectible, Specimen,4 Pair Fossil Ferns Coal City, Illinois 300 M.Y.O. PecopterisSee 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
Sold2022Fern, Fossil, Rock, Natural, Collectible, Specimen,7 Pair Pectopteris Annularia Fossils Mazon Creek Illinois 300 M.Y.O.See Sold Price
Sold2016Natural History - Museum Quality Pine Cone FossilJurassic Period, 199-145 million years BP. A very detailed and colourful museum-quality fossil pine cone pair Araucaria Mirabilis from Cerro Cuadrado, Patagonia, Argentina; the polished cone with stroSee Sold Price
Sold2024Natural History - Polished Orthoceras Book End PairDevonian 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.). FroSee Sold Price
Sold2017Natural History - Fossil Mesosaurus SkeletonPermian 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 BrSee Sold Price
Sold2023Natural History - Fossil Claudiosaurus SkeletonLate 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 aSee Sold Price
Sold2023Natural History - Fossil Cave Bear PawDevensian 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.See Sold Price
Sold2023Natural History - Fossil Fish and Lobster in MatrixCretaceous Period, 145-65 million years B.P. Possibly Pseudostacus hakeliensis, together with a fossil fish, possibly Rhinobatos sp., both showing some good detail. 4.5 kg, 41 cm (16 1/8 in.). From LeSee Sold Price
Jun 07TimeLine Auctions Ltd.Natural History - Fossil North American Tyrannosaurus Rex Dinosaur Coprolites£5(1 bid)