Natural History - Coltraneia Fossil Trilobite on Matrix

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

Devonian 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 a

Devonian Period, 417-354 million years B.P.. Hollardops mesacristata trilobite on a matrix. 121 grams, 77 mm (3 in.). From the Atlas Mountains, Hamar Laghdad Formation, Pragian, (Alnif), Morocco. From

Upper Devonian Period, 385-359 million years B.P.. Cheirurus (Crotalocephalina) trilobite Crotalocephalus gibbus fossil on a matrix. 175 grams, 72 mm (2 7/8 in.). From Hamar Laghdad Formation, Pragian

Devonian Period, 417-354 million years B.P. A fossil Paralejurus rehamnanus trilobite on a matrix. 234 grams, 92 mm (3 5/8 in.). From the Atlas Mountains, Hamar Laghdad Formation, Pragian, (Alnif), Mo

Devonian Period, 417-354 million years B.P. A fossil Morocops barrandeops sp. trilobite on a matrix. 331 grams, 85 mm (3 3/8 in.). From the Atlas Mountains, Hamar Laghdad Formation, Pragian, (Alnif),

Devonian Period, 417-354 million years B.P. A group of three Morocops (Barrandeops) sp. trilobites on a matrix. 256 grams total, 51-59 mm (2 - 2 3/8 in.). From the Atlas Mountains, Hamar Laghdad Forma

Upper Devonian Period, 385 to 359 million years BP. A Geesops sp. trilobite on matrix. 215 grams, 80mm (3 1/4"). From an old Bristol paleontological collection; acquired 1950s-1960s; previously with a

Upper Devonian Period, circa 385-359 million years B.P.. A Reedops sp. trilobite on matrix, clearly showing the external structures. 230 grams, 88 mm (3 1/2 in.). From the Hamar Laghdad Formation, Atl

Middle 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,

Devonian Period, 417-354 million years BP. A large Cambropallas telesto trilobite on a matrix from Djbel Ougrat, Morocco. 1.9 kg, 26cm (10 1/4") From the collection of the palaeontologist R Gledhill c

Devonian Period, 417-354 million years B.P. A large fossil Cambropallas sp. trilobite in a matrix. 2.7 kg, 29 cm (11 3/8 in.). From Morocco, North Africa.Ex Cambridgeshire, UK, collection. [No Reserve

. A mixed group of mineral specimens and a fossil comprising: twenty seven of chalcopyrite, four azurite on matrix, one citrine, one Flexicalimene trilobite. Private collection, Cambridgeshire, UK; ac

Upper Devonian Period, 385-359 million years BP. A fossil Diaclaymene(?) trilobite. 132 grams, 96mm (3 3/4"). Property of a North London gentleman; previously in a private collection formed in the 199

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

Ordovician Period, 350-250 million years BP. A large fossil trilobite, possibly Calymene sp. showing the external structures. 152 grams, 10.2cm (4"). UK art market, acquired prior to 2000; from Morocc

Devonian Period, circa 417-354 million years B.P.. The nodule opened to reveal the positive and negative of the fossilised Flexicalymene sp. trilobite. 283 grams, 77 mm (3 in.). From Morocco, North Af

Ordovician-Silurian, 488-415 million years BP. A group consisting of one Silurian and two Ordovician trilobites, two in old white card trays with A.B. Cotterill Collection, Wollaton, Nottingham, UK, l

Devonian Period, circa 417-354 million years B.P.. Three Flexicalymene sp. trilobites from nodules. 351 grams total, 71-86 mm (2 3/4 - 3 3/8 in.). From Morocco, North Africa.From a Cambridgeshire, UK,

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

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

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