A section of a jaw with two Igdamanosaurus aegyptiacus teeth. 63 grams, 76 mm

From the Oulad Abdoun Basin, Morocco, North Africa.
Collected between 1930 and 1960.
From the collection of the palaeontologist R Gledhill.

Most Mosasaurs had sharp teeth that had evolved to grab slippery prey such as fish. Igdamanosaurus had semi-spherical teeth with rounded points, which were better suited for crushing tough-armoured prey such as turtles, ammonites, nautili, and bivalves.

Showing the odontopleurid trilobite specimen on an irregular matrix; repaired. 180 grams, 70 mm

From Hamar L'Aghdad limestones, Djebel Issomour area, Anti-Atlas Mountains, Morocco.
From a Cambridgeshire, UK, collection.

Comprising three polished specimens with clean centres. 123 grams total, 48 mm each

From the North-East Coast of Madagascar in the jungles of Mahajanga.
Acquired 1950s-1960s.
From an old Bristol, UK, paleontological collection.

Of three teeth from Prognathodon sp., mosasaur specialised in eating tough shelled prey. 27.2 grams, 33-45 mm

UK collection since the 1990s.
Property of a Sussex, UK, teacher.

Comprising a partial jaw and two teeth from Igdamanosaurus aegyptiacus. 110 grams, 72 mm

From the Oulad Abdoun Basin, Morocco, North Africa.
Collected between 1930 and 1960.
From the collection of the palaeontologist R Gledhill.

Most Mosasaurs had sharp teeth that had evolved to grab slippery prey such as fish. Igdamanosaurus had semi-spherical teeth with rounded points, which were better suited for crushing tough-armoured prey such as turtles, ammonites, nautili, and bivalves.

A trio of differently sized nickel iron (IAB) meteorites with a composition of 92.9% iron, 6.7% nickel. 4.1 grams total, 8-15 mm

Discovered 1576 A.D., Chaco Province, Argentina.
Ex German dealer 2018.
UK private collection.

See Graham, Bevan and Hutchison ed., Catalogue of Meteorites, Natural History Museum, 1985, p.88, for details of this fall.

A crater field of roughly 26 craters was found in the vicinity of this crater, which is estimated to date to 4-5 thousand years BP. The age of the meteorite itself is thought to be c.4.5 billion years, formed as part of the development of this solar system. The largest two fragments, the 30.8 ton Gancedo and 28.8 ton El Chaco, are among the heaviest meteorite masses ever recovered on Earth. In 1576, the governor of a province in Northern Argentina commissioned the military to search for a large mass of iron, which it was believed local people claimed had fallen from the sky and which they used for their weapon production. The expedition discovered a large mass of metal which was assumed to be an iron mine and brought back a few samples, which were described as being of unusual purity. Following the legends, in 1774 Don Bartolomé Francisco de Maguna rediscovered the iron mass. He himself did not believe that the stone had fallen from the sky and assumed that it had formed by a volcanic eruption. However, he sent the samples to the Royal Society of London. In 1990 it became protected by law.

Comprising four sections of Aepyornis eggs. 50 grams total, 35-68 mm

From Madagascar.
Acquired 1950s-1960s.
From an old Bristol, UK, paleontological collection.

Hollardops mesacristata on a matrix. 130 grams, 78 mm

From the Atlas Mountains, Hamar Laghdad Formation, Prgain, Alnif, Morocco, North Africa.
From an old Oxford, UK, fossil and mineral collection.

Displaying a later carved stylised face with exaggerated facial detailing. 89 grams, 96 mm

From Island of Java, indonesia.
Acquired 1950s-1960s.
From an old Bristol, UK, paleontological collection.

Restrung using polished Mammuthus primigenius bone beads. 94 grams, 68 cm long

Ex private collection of a Shropshire, UK, gentleman, 1990s.

On a rectangular matrix displaying the complete skeleton. 3.8 kg, 31 x 23 cm

From Xingyi, Guizhou, China.
Acquired 1950s-1960s.
From an old Bristol, UK, paleontological collection.

Keichousaurus was a late-Triassic marine reptile, and a member of the Pleurosaur family, and went extinct 250 million years ago during the Triassic-Jurassic extinction event. They were specialised fish eaters, and were highly unusual amongst marine reptiles in that they gave birth to live young rather than laying eggs.

Comprising: specularite; mini geode halves; citrine porcupine; pyrite; pink and green fluorite specimens; each held in a white card collector's tray with accompanying label. 420 grams total, 33-50 mmVery fine condition.

Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).