Identification of UK Mesozoic Vertebrate Teeth

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Rhamphocephalus sp. Pterosaur Tooth.

These teeth are extremely rare to find in the UK Bathonian. This is one of several that I have found to date and it measures 19mm in height. It was found in the clay layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. Sadly this site is a landfill site and no longer open to the public.

Plesiosauridae indet. Plesiosaur Tooth.

These teeth are extremely rare to find in the UK Bathonian (more so in this condition) and the species is currently deemed 'indeterminate'. This measures 30mm in height. It was found in the clay layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. Sadly this site is a landfill site and no longer open to the public.

Teleosaurus sp. Marine Crocodile Tooth.

These teeth are common to find in the UK Bathonian (but only at the Ardley site ! This measures 29mm in height. It was found in the clay layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. Sadly this site is a landfill site and no longer open to the public.

Eomesodon trigonus Fish Splenial Bone.

These fish splenial bones are extremely rare to find in the UK Bathonian even in this partial condition. This is the only one I have found to date and it measures 13mm in length. It was found in the clay layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. Sadly this site is a landfill site and no longer open to the public.

Lissodus leiodus Shark Tooth.

These teeth are rare to find in the UK Bathonian. This is a complete crown but is missing the root. This particular one measures 6mm across and exhibits excellent characteristics. It was found in the Blisworth Limestone, Great Oolite Series of Ketton, Lincolnshire. Photographed by Andrea Matheau-Raven.

Egertonodus duffini sp. nov. Shark Tooth.

These teeth are rare to find in the UK Bathonian. This is a near complete crown but is missing the root. This particular one measures 5mm in height and exhibits excellent characteristics. It was found in the Blisworth Limestone, Great Oolite Series of Ketton, Lincolnshire. Preppared and photographed by Sam McAuliffe.

Hybodus obtusus Shark Tooth.

These teeth are extremely rare to find in the UK Bathonian. This is the only one I have found to date and it measures 12mm across the base. It was found in the clay layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. Sadly this site is a landfill site and no longer open to the public.

Asteracanthus tenuis Shark Tooth.

These highly humped teeth are uncommon to find in the UK Bathonian and are characteristic of the species. This anterior tooth specimen measures 16mm across the base. It was found in the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. Lateral teeth are much more slender than the other two species. Fossil teeth from this layer have beautiful tri-colouration.

Asteracanthus tenuis Shark Tooth.

These are rare to find in the county of Lincolnshire. This lateral tooth specimen measures 16mm across the base. It was found in the White Limestone, Great Oolite Series of Sleaford, Lincolnshire. Fossil teeth from this strata have a beautiful gun metal blue colouration.

Asteracanthus medius Shark Tooth.

This species is currently unrecorded in the UK Bathonian and research is ongoing. This is one of several anterior teeth I have found to date and it measures 18mm across the base. It was found in the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. These teeth are much more robust than A. tenuis and domed unlike A. magnus which are flat and triangular shaped in occlusal view. 

Asteracanthus medius Shark Tooth.

This is one of several I have found to date and it measures 20mm across the base. It is an anterolateral tooth and was found in the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. Note the occlusal ridge which is also evident in A. tenuis but not A. magnus.

Asteracanthus medius Tooth Set (France).

Here is a french specimen with a near complete dentition for comparrison. 

Asteracanthus sp. Shark Dorsal Spine.

This is one of several partial dorsal spines I have found to date and  typically needs major repair and restoration. It was found in the Clay Layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series, Bathonian Stage, Jurassic of Ardley, Oxfordshire. Note the enamelled tubercles and down turned denticles. The scale is shown in (cm).

Asteracanthus magnus Shark Tooth.

This is one of many lateral teeth I have found to date and it measures 36mm across the base. It was found in the Clay Layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire. The fossil teeth from this layer are jet black in colouration and this species is the most common find. They are generally flat and broad in appearance with a 'pitted' crown.

Egertonodus duffini sp. nov. Shark Tooth.

These teeth are rare to find in the UK Bathonian and I have never found a complete specimen. This particular one measures 13mm across the base and exhibits excellent characteristics. It was found in the clay layer just beneath the Transitional Layer of the Ardley Member, Great Oolite Series of Ardley, Oxfordshire.

Frangerodus lingualis Shark Tooth.

These teeth are extremely rare to find in the UK Bathonian and it is the only one I have found. This specimen measures 5mm across the base and exhibits excellent crown characteristics. It was found in the Lincolnshire Limestone, Great Oolite Series of Shaddywell Pit, Helpston near Peterborough, Cambridgeshire.