Natural History - Fossil Leonaspis 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

Ordovician Period, circa 510-445 million years B.P. Displaying distinctive swept-back genal spines. 311 grams, 10.8 cm (4 1/4 in.). From a Cambridgeshire, UK, collection. Property of a 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

Devonian Period, circa 417-354 million years B.P. On a textured matrix, the Cambropallas sp. showing some good detail to the segmented body. 1.97 kg, 26 cm (10 1/4 in.). From a Cambridgeshire, UK, col

. 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

Devonian Period, circa 417-354 million years B.P. The large Cambropallas sp. showing some good detail to the segmented body. 2.2 kg, 24 cm (9 1/2 in.). From a Cambridgeshire, UK, collection. Property

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,

Ordovician Period, circa 510-445 million years B.P. Comprising four Flexicalymene sp. specimens. 260 grams total, 72-82 mm (2 3/4 - 3 1/4 in.). From a Cambridgeshire, UK, collection. Property of a Cam

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