Various ichthyosaur vertebrae fossil specimens, the exact species they belonged to is unknown. Ichthyosaurs were a group of marine reptiles which lived during the Jurassic period, these sampled were found in the Kimmeridgian clay beds of Abingdon, Oxfordshire, dating them to between 157 to 152 millions years old. The animals them selves are often easily identified by many, as their body shapes resembled that of modern day dolphins, except the tail fluke propelled the reptile by moving side to side as opposed to up and down. Quick and agile with a mouth full of small, pointed teeth, it is believed that they fed on small fish and ammonites, however, ichthyosaurs them selves were prey to the various species of large pliosaurs which also lived during the same time period, such as liopleurodon. These fossil vertbrae are available in various optional sizes and come supplied in a card tray with an information label.