Natural History - Fossil Brittle Star on Matrix

Ordovician Period, 485-444 million years B.P. A polygonal matrix displaying a fossilised Ophiura sp. brittle star. 449 grams, 14 cm (5 1/2 in.). From Morocco, North Africa.Ex Lincolnshire, UK, collect

Ordovician Period, circa 485.4-443.8 million years B.P. Ophiuroidea sp. on an irregular matrix. 383 grams, 14.5 cm (5 3/4 in.). Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collecti

Jurassic Period, 203-145 years BP. A fossil of the 'brittle star' Geocoma elegans from Ardiche, France, in old white card tray with A. B. Cotterill Collection, Wollaton, Nottingham, UK, label. See Geo

Ordovician Period, 450 million years B.P. A detailed brittlestar starfish fossil specimen. 787 grams, 20.5 cm (8 1/8 in.). From the Kataoua Formation near Erfoud, Morocco, North Africa. Private Shrops

Cretaceous 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, U

Ordovician Period, 485-444 million years B.P. An Ophiuroidea sp. fossil brittle star in a matrix, together with a partial; held in a white card collector's tray. 152 grams, 11 cm (165 grams, 100 x 78

Ordovician Period, 485-444 million years B.P. A group of three Ophiuroidea sp. fossil brittle stars in three matrices, two near complete, one partial; held in a white card collector's tray. 4-78 grams

Eocene Period, 58-36 million years BP. A matrix with complete fossil fish Knightia eocaena and a second partial from Warfield's Quarry, Kemmerer, Green River Formation, Wyoming, U.S.A. 688 grams, 20cm

Eocene Period, 58-36 million years BP. A sedimentary matrix with a Knightia alta fossil fish from Wyoming (Green River Formation), USA. 2.2 kg, 31cm (12 1/4"). Property of a Lincolnshire, UK, gentlema

Eocene Period, 58-36 million years BP. A matrix with a complete fossil fish Knightia eocaena from Warfield's Quarry, Kemmerer, Green River Formation, Wyoming, U.S.A. 1.2 kg, 22.5cm (8 3/4"). Property

Cambrian-Permian Period, 521-250 million years B.P. A Coltraneia sp. fossil trilobite; held in a white card collector's tray. 221 grams, 86 mm (3 3/8 in.). From Morocco, North Africa.Ex Cambridgeshire

Eocene Period, 56-33 million years B.P. A rectangular sedimentary matrix displaying a Mioplosus sp. fossil fish. 937 grams, 17.8 x 13 cm (7 x 5 1/8 in.). Ex Lincolnshire, UK, collection. In southwest

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

Eocene Period, 58-36 million years BP. A fossil Diplomystus fish from the Green River Formation, Lincoln County, Wyoming, USA. 559 grams, 23cm (9"). From the Pradi Collection, Boston, USA acquired dur

Cretaceous 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 Le

Ordovician Period, 485-444 million years B.P. A group of three fossil Ophiuroidea sp. brittle stars in a matrix; held in a white card collector's tray. 200 grams, 12 cm (201 grams total, 12.7 x 9.2 cm

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

Cretaceous Period, c.100 million years BP. A near complete fossil Barrasaurus marine 'dinosaur' skeleton in a matrix. 372 grams, 17.5cm (7"). From an East Anglia, UK, collection; from China.

Triassic Period, 250-200 million years BP. A complete fossil Keichousaurus hui marine 'dinosaur' skeleton on matrix. 1.5 kg, 27.3cm (10 3/4"). From a Lincoln palaeontological collection; acquired 1970

Late Permian-early Triassic Period, circa 255 million years B.P.. Two rare Barasaurus besairiei skeletons on a matrix. 2 kg, 29.5 cm (11 5/8 in.). From Plateau de I'lsala, Madagascar.Acquired 1950s-19

Silurian/Devonian Period, 443-358 million years BP. A fossil Scyphocrinus elegans crinoid in matrix from Erfoud, Morocco. 2 kg, 27.5cm (11"). Property of a Lincolnshire, UK, gentleman; acquired on the

Silurian/Devonian Period, 443-358 million years BP. A fossil Scyphocrinus elegans crinoid in matrix from Erfoud, Morocco. 1.9 kg, 27.5cm (10 3/4"). Property of a Lincolnshire, UK, gentleman; acquired

Pliocene Period, 5.3-2.5 million years BP. A rare pipefish Centriscus strigatus in matrix. 255 grams, 17cm (7"). From an old French paleontological collection, acquired 1960s; from the Lower Pliocene,

Pliocene Period, 5.2 - 2.5 million years BP. A Jianghanghichthys hubiensis fossil fish in matrix from Yichang, Hubei Provence, China. 90 grams, 10cm (4"). Private collection, Lincolnshire, UK; acquire