Natural History - Large Fossil Echinoid Display Pair

Cretaceous Period, circa 100 million years B.P.. Featuring two echinoid specimens in an irregular matrix. 2.8 kg, 17.5 cm (7 in.). From Morocco, North Africa. [No Reserve]

Devonian Period, circa 417-354 million years B.P. The extinct nautiloid cephalopod polished to reveal the internal gas chambers and set on a textured freestanding matrix. 15.8 kg, 1.01 m (39 3/4 in.).

Upper Devonian Period, 370 million years B.P.. The freestanding textured matrix containing four specimens. 1.77 kg, 18 cm high (7 1/8 in.). Ex Cambridgeshire, UK, collection. [No Reserve]

Jurassic Period, circa 180-185 million years B.P.. Presenting an Amaltheus stokesi fossil ammonite in a matrix, together with other fossil inclusions. 1.2 kg, 17.5 cm (6 7/8 in.). From Hawsker, North

Miocene Period, circa 25 million years B.P.. Composed of several fossil sea urchins or sand dollars in a matrix. 4.6 kg, 34.5 cm (13 5/8 in.). From France.

Devonian Period, 416-359 million years BP. A large fossil coral colony specimen pair, polished on one side to reveal the detail and colour of the species Arachnophyllum pentagonam, from Assa Zag, West

Late Cretaceous Period, Cenomanian-Turonian Stages, circa 100- 90 million years B.P.. A freestanding example of a large Mammites nodosoides fossil ammonite. 3 kg, 20 cm (7 7/8 in.). From Morocco, Nort

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

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

Upper Palaeocene, Thanetian Stage, circa 56 million years B.P.. From Otodus obliquus Agassiz 1843 (mackerel shark). 234 grams, 79 mm (3 1/8 in.). From the Ouled Abdoun Basin Formation (Phosphate beds)

Silurian Period, 443-416 million years B.P. Displaying two partial crowns. From a Lincolnshire, UK, collection.[No Reserve]

Eocene Period, circa 56-33 million years B.P. The large sandstone matrix with five Knightia alta specimens. 8.25 kg, 50.5 x 38 cm (19 7/8 x 15 in.). From a Lincolnshire, UK, collection. In southwest W

Devonian Period, 417-354 million years B.P. A cluster of six fossil ammonoids displayed on a sub-triangular free-standing matrix. 1.38 kg, 18.5 cm (7 1/4 in.). From Morocco, North Africa.Ex Cambridges

Lower Jurassic, Toarcian Stage, Upper Lias, Grey Shales, 199-175 million years BP. A large split Dactylioceras commune ammonite nodule, showing both positive and negative aspects, from Whitby, UK. 632

Palaeozoic Period, 350 million years BP. A polished display plate of Orthoceras regulare, showing the fossil structures. 1.7 kg, 24.5cm (9 3/4"). From an old Cambridge, UK, collection; from the Atlas

Devonian Period, 417-354 million years B.P. Comprising a pair of polished fossiliferous matrices set with a polished Goniatite ammonite. 3.4 kg total, 15 cm high (5 7/8 in.). 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, 358.9-298.9 million years B.P. A mixed group of 17 fossil crinoid 'parts' of various types; held in a display box. 270 grams total, 21 x 16 cm (8 1/4 x 6 1/4 in.). From the Fort

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, 417-354 million years B.P. A pair of polished fossil book ends, each trapezoidal and displaying a raised Orthoceras sp. fossil. 2 kg total, 12 cm high each (4 3/4 in.). From Morocco,

Jurassic Period, circa 200-190 million years B.P.. The matrix with two Dactylioceras tenuicostatum fossil ammonite specimens. 1.6 kg, 14 cm (5 1/2 in.). From the Holderness Coast, Yorkshire, UK. [No R

A pair of large prism cut fluorite polished points with bands of colour ranging from jade green, purple and clear, with 'rainbow' reflections in the body and at the points. From China; from the histor

. A very large selenite gypsum 'desert rose' composed of blades of selenite with gypsum sand inclusions. 3.1 kg, 22 cm wide (8 5/8 in.). From a Humberside, UK, collection. [No Reserve]

Jurassic Period, Sinemurian, circa 200 million years B.P.. Showing the partial remains of a Eteoderoceras sp. fossil ammonite. 982 grams, 14.5 cm (5 3/4 in.). From North Yorkshire, UK.