Natural History - Large Plesiosaurus 'Marine Dinosaur' Fossil Vertebra

Jurassic Period, circa 199-145 million years B.P. Comprising the main body of the vertebra. 238 grams, 85 mm (3 3/8 in.). From a Cambridgeshire, UK, collection. Property of a Cambridgeshire, UK, gentl

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

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)

Cretaceous Period, 145-65 million years B.P. A group of four large complete or near-complete fossil vertebrae from a Plesiosaur sp. marine dinosaur, set into a sedimentary stone matrix with plaster ba

Lower Cretaceous Period, 120 million years BP. A British Iguanodon sp. dinosaur fossil tail vertebrae in a matrix. From Wealden Clay, Isle of Wight, UK; from the collection of the palaeontologist R. G

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

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

Pleistocene Period, circa 40.000 years B.P. A large woolly rhinoceros Coelodonta antiquitatis vertebra. 564 grams, 16 cm (6 1/4 in.). From Brown Bank, off Lowestoft, UK.Acquired before 1960.From an ol

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

Jurassic Period, 199-145 million years BP. Two dorsal vertebrae from the Ichthyosaur marine reptile. 559 grams, 8.5cm (3 1/4"). Property of a Lincolnshire, UK, gentleman; acquired on the UK art market

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,

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

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

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

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.

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

Upper Jurassic Period, 150 million years BP. A fossil dorsal vertebra from an ichthyosaur, from the Kimmeridge Clay, Weymouth, Dorset, UK, mounted on a custom-made display stand. 640 grams, 15.5cm inc

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

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]