PLESIOSAUR / PLIOSAUR INDET.
Complete caudal vertebra from a large predatory marine reptile. Impossible to say if it from a Pliosaur or a Plesiosaur. Outer edge with an epifauna of small sponges and Bryozoan colonies. Lovely detail under magnification. Unusual.
Jurassic, Kimmeridgian, Re-worked into overlying Cretaceous, Aptian, Faringdon Sponge Beds.
Wicklesham Pit, Faringdon, Oxfordshire.
Vertebra : 6.4 x 6.5 x 4 cm.