Natural History - North American Fossil Fern Nodule

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

Cretaceous Period, circa 145-65 million years B.P. A pair of coprolites (fossilised dung) from a North American tyrannosaurid dinosaur. 85 grams total, 37-43 mm (1 1/2 - 1 5/8 in.). From a Lincolnshir

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

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,

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

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.

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

Jurassic Period, Toarcian Stage, 182-174 million years B.P. Comprising two opened nodules showing the negative and positive of Dactylioceras commune fossil. 709 grams total, 65-89 mm (2 1/2 - 3 1/2 in

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

Frame of 7 Cast Arrowheads From The Denver Museum of Natural History. The 6" x 8" Frame is included. The longest point is 3".

2 Folsom Cast Arrowheads From The Denver Museum of Natural History. The longest is 2 1/16"

3 3/16" Clovis "Cast" from the Denver Museum of Natural History.

4 5/8" Alberta "Cast Replica" From The Denver Museum of Natural History.

3 9/16" Clovis "Cast" arrowhead from the Denver Museum of Natural History.

4 1/2" Clovis Cast Arrowhead From The Denver Museum of Natural History.

4 3/16" Clovis "Cast" from the Denver Museum of Natural History.

4" Clovis "Cast Replica" From The Denver Museum of Natural History.

3 9/16" Clovis Cast From The Denver Museum of Natural History.

2 5/16" Folsom Cast From The Denver Museum of Natural History.

2 3/4" Clovis "Cast Arrowhead" From The Denver Museum of Natural History.

2 11/16" Allen "Cast" arrowhead from the Denver Museum of Natural History.