Natural History - Fossil Pennsylvania Fern on Matrix

Carboniferous Period, circa 345-280 million years B.P. Comprising four bifacial matrices with Pecopteris sp. ferns. 160 grams total, 7.5-10.5 cm (3 - 4 1/8 in.). From a Cambridgeshire, UK, collection.

Permian Period, 298-252 million years B.P. Comprising two irregular matrices, each with multiple plant and fern fossils. 318 grams total, 10.6-20 cm (4 1/8 - 7 7/8 in.). From Saxony, Germany. From a C

Devonian Period, circa 417-354 million years B.P. Five Pecopteris sp. fern specimens on irregular matrices 3.04 kg total, 15-25 cm (6 - 9 7/8 in.). From St. Clair, Pennsylvania, USA. Acquired during t

Carboniferous Period, 345-280 million years B.P. An opened nodule with a pair of fern fossils. 108 grams total, 54-58 mm (2 1/8 - 2 1/4 in.). From a Lincolnshire, UK, collection. Property of a Cambrid

Middle 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,

Carboniferous 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 Coal

Early 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 Gregory

Carboniferous 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 Gregory

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

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

Eocene Period, circa 55 million years B.P. A rectangular matrix with a Diplomystus sp. specimen. 1.07 kg, 19.5 x 19.5 cm (7 3/4 x 7 3/4 in.). From a Lincolnshire, UK, collection. Property of a Cambrid

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

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

Eocene Period, 56-33 million years B.P. Comprising a pair of matrices, each with two Pleciapealei fossils. 410 grams total, 83-93 mm (3 1/4 - 3 5/8 in.). From a Lincolnshire, UK, collection. Property

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,

Eocene Period, circa 56-33 million years B.P. Comprising a pair of matrices, each with two Pleciapealei fossils. 252 grams total, 76-81 mm (3 - 3 1/8 in.). From a Lincolnshire, UK, collection. Propert

Ordovician Period, circa 485-444 million years B.P. Showing a complete and a partial Petraster sp. specimen; repaired. 711 grams, 15.5 cm (6 1/8 in.). From a Cambridgeshire, UK, collection. Property o

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

Middle 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 North