Natural History - Fossil Mosasaur Marine 'Dinosaur'

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

Late Cretaceous Period, circa 100-66 million years B.P.. A near complete Charonosaurus sp. hadrosaur egg, retaining the leathery surface, and possibly showing the internal remains at one corner. 1.73

Cretaceous Period, 145-65 million years BP. A fossil hadrosaur Charonosaurus egg on matrix, retaining evidence of the original leathery surface. 2.5 kg, 14cm (5 1/2"). Property of a London gentleman;

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

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, 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, 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,

Cretaceous Period, 70 million years B.P. A natural Mosasaur articulated vertebra, consisting of six individual vertebrae with some original matrix. 482 grams, 22.5 cm (8 7/8 in.). From the lower phosp

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

Permian Period, 285 million years BP. A complete preserved Mesosaurus brasiliensis skeleton in limestone; from the Irati-Formation, Parana Delta, Brazil. 4.4 kg, 48cm x 33cm (19 x 13"). From an old Br

Late Permian-Early Triassic Period, circa 252-250 million years B.P. In an irregular matrix. 12.2 kg, 43 cm (17 in.). From Madagascar. From a Cambridgeshire, UK, collection.This lot has been checked a

Devensian Period, 110,000-12,000 years B.P. Including the claws and bones, held together by an internal metal frame. 608 grams, 33 cm (13 in.). Ex Lincolnshire, UK, collection.

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

Late Permian-early Triassic Period, circa 255 million years B.P.. Two rare Barasaurus besairiei skeletons on a matrix. 2 kg, 29.5 cm (11 5/8 in.). From Plateau de I'lsala, Madagascar.Acquired 1950s-19

Neogene Period, circa 15-12 million years B.P.. A well preserved and prepared complete Tumidocarcinus giganteus from a classic fossil location; witha handwritten provenance label to verso. 926 grams,

Ammonoidea coiled shell cephalopod, probably Devonian to late Cretaceous period. [9 1/4 x 12 1/2 x 3 3/4 inches].

Eocene Period, 58-36 million years BP. A fossil mud lobster Thalassina sp. crayfish fossil, from Australia. 137 grams, 15.2cm (6"). From an old Bristol palaeontological collection; acquired 1950s-1960

Jurassic Period, circa 200 million years B.P. Promicroceras planicosta with iron stained surface giving a beautiful contrast in colour, from the Lower Lias, Obtusum Zone. 42.53 grams, 67 mm (2 3/5 in.

Silurian/Devonian Period, 443-358 million years BP. A fossil Scyphocrinus elegans crinoid in matrix from Erfoud, Morocco. 2 kg, 27.5cm (11"). Property of a Lincolnshire, UK, gentleman; acquired on the

Silurian/Devonian Period, 443-358 million years BP. A fossil Scyphocrinus elegans crinoid in matrix from Erfoud, Morocco. 1.9 kg, 27.5cm (10 3/4"). Property of a Lincolnshire, UK, gentleman; acquired

Pliocene Period, 5.2 - 2.5 million years BP. A Jianghanghichthys hubiensis fossil fish from Yichang, Hubei Provence, China. 81 grams, 95mm (3 3/4"). Private collection, Lincolnshire, UK; acquired befo

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.

Pliocene Epoch, 2.58-5.33 million years BP. An almost complete sentinel crab Macrophtalmus sp. from the Pliocene layers of Majinga (Majunga) Province in Madagascar. 124 grams, 15cm (6"). From an old B