Mosasaur 'Marine Dinosaur' Tooth with Root

A well-preserved large tooth with knife-like serrations on two edges, designed to slice through flesh and bone, displaying beautiful dark brown patina. 53 grams total, tooth: 54 mm, 12.5 cm including stand



Found in the Hells Creek Formation, Montana, USA. Property of a Bristol, UK, gentleman collector.

The most famous and iconic of all dinosaur species, the Tyrannosaurus rex was first described by Henry Fairfield Osborn in 1905 from a skeleton found in 1902, from the Hell Creek Formation in Montana. An adult Tyrannosaurus would have weighed almost nine tonnes, standing over 4 meters tall at the hip and exceeding 13 meters in length. It is no wonder this theropod was the top predator of the late Cretaceous, and amongst the last dinosaurs to walk the earth before their mass extinction. The present tooth offers an incredible insight into how these ferocious creatures lived, characterised by its unique curved and serrated shape, which was specifically adapted to help the dinosaur tear through hides and flesh, with the curvature allowing maximum force to be applied as it tore into its prey.

Comprising two polished fossiliferous eggs, each showing a partial Orthoceras specimen. 300 grams total, 49-67 mm



From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

Comprising: calcite from Dulcote Quarry, Wells, Somerset; quartz from Wheal Wrey, St Ive, Cornwall; sphalerite and chalcopyrite from Great South Tolgus, Tarewaste, Cornwall; pyrite from Trevaunance Cove, St Agnes, Cornwall; goethite from Barngate Level, Restormel Royal Iron Mine, Lostwithiel, Cornwall; quartz on fluorite from Wheal Mary Ann, Menheniot, Cornwall; goethite and quartz from Cornwall; quartz from Royal Restormel Mine, Lostwithiel, Cornwall; pyrite from Cornwall. 3.42 kg total, 6.3-12.6 cm



From the property of a Cornwall, UK, gentleman.