------- Man, [783].
------- Portland, [156], [230], [412].
---------------- petrified forest in the, [70].
------- Purbeck, [422], [736].
------- Sheppey, [186], [202], [470], [515], [597], [676], [738], [838].
------- Wight, passim.
Isoletus, [537].
Isopoda, [521].
Issoire, [765].