Natural History - Enormous Two Metre Section of Fossil Mosasaur 'Marine Dinosaur' Spine

Cretaceous Period, 145-65 million years B.P. The spine section comprising sixteen large, perfectly lined dorsal vertebrae with transverse processes with another at each end lying flat, various other v

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

Cretaceous Period, circa 67-65 million years B.P. A one meter section of a large fossil Mosasaur dinosaur spine comprising 17 near fully preserved vertebrae in a matrix; plaster jacket. 55.5 kg, 1.01

Cretaceous Period, c.100 million years BP. A near complete fossil Barrasaurus marine 'dinosaur' skeleton in a matrix. 372 grams, 17.5cm (7"). From an East Anglia, UK, collection; from China.

Triassic Period, 250-200 million years BP. A complete fossil Keichousaurus hui marine 'dinosaur' skeleton on matrix. 1.5 kg, 27.3cm (10 3/4"). From a Lincoln palaeontological collection; acquired 1970

Cretaceous Period, circa 67-65 million years B.P. A section of large fossil Mosasaur dinosaur spine comprising eight near fully preserved vertebrae in a matrix. 26 kg, 66 cm (26 in.). Acquired Spain,

Jurassic Period, circa 140 million years B.P.. Comprising a large fragment of fossilised dung. 1 kg total, 12.4 cm (4 7/8 in.). From the Morrison Formation, Colorado, USA. Collected 1930-1960. From th

Jurassic Period, circa 199-145 million years B.P. A composite plate containing a large number of variously sized ammonites, polished upper face. 835 grams, 24.7 cm (9 3/4 in.). From Madagascar. From a

Ordovician Period, 450 million years BP. A mortality plate displaying five large brittlestars, Ophiura sp. showing much detail. 1.9 kg, 28cm (11"). Property of a Lincolnshire gentleman; formerly in an

Ordovician Period, 485-444 million years BP. A mortality plate displaying two large brittlestars, Ophiura sp. from the Kataoua formation in Blekus, Morocco. 860 grams, 18x17cm (7 x 6 3/4"). From an ol

Ordovician Period, 450 million years BP. A mortality plate displaying four large brittlestars, Ophiura sp. showing much detail. 1.7 kg, 29.5cm (11 1/2"). Property of a Lincolnshire gentleman; formerly

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, 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.).

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

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]

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)

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.

Miocene Period, 23-5.3 million years BP. A free-standing Pecten plaque from Southern France. 2831 grams, 24.5cm (9 1/2"). From an old Oxford collection.

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

Jurassic Period, 199-145 million years BP. A sedimentary slate(?) matrix with two large examples of the psiloceras ammonite and numerous others. 28 kg, 75cm (29 1/2"). From an important London collect

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