Norwich Crag Formation taxa from Easton Wood include "Orca" and walrus "Alachatherium cretsii" . Short-beaked common dolphin "Delphinus delphis" and indeterminate whale bones are recorded from Holton and Thorington. Very few avian fossils have been found in the Norwich Crag. Bones of "common guillemot", "little auk" and various indeterminate seabird bones have been recorded from Aldeby, Chillesford, Easton Bavents and Yarn Hill.. The albatross "Phoebastria anglica" has been recorded from Easton Wood, Covehithe. No reptile and amphibian fossils have yet been recorded from the Norwich Crag. Fossil marine fish from the Norwich Crag include genera "Chrysophrys" sp. (a snapper) and "Acipenser" (sturgeon), and
Hydrus (legendary creature) Hydrus (legendary creature) The Hydrus (also known as "Enhydros, Enidros, Hildris, Hydra, Idra, Idres, Ydre, Ydris", and "Ydrus") is a creature from Medieval bestiaries. They were said to be found in the Nile River. While in the Nile, a crocodile would roll the hydrus in the mud before eating the smaller creature. However, once inside the crocodile's stomach, the hydrus would burst free from the stomach lining. In medieval Christian tradition, this bursting free from the crocodile became an emblem of the resurrection of Christ bursting free from Hell. There is considerable confusion in applying the name hydrus and its