Phymatoceras rude Simpson 1843.
One of the rarer species of Ammonite to be found in the famous 'Junction Beds' of Somerset. Matrix free. To the protoconch on one side. Epifauna od serpulids on the inner whorls. Inner whorls well shelled. Outer whorl with some damage.
Jurassic, Toarcian, 'Junction Beds'.
Hurcott, Ilminster district, Somerset.
Ammonite : 6.5 cm. diam.
