----------, tridactylous, [768].
Ichthyodorulites, [576].
Ichthyolites, [562].
Ichthyopatolites, [632].
Ichthyosaurus, [662].
Idmonea Comptoniana, [268], [272].
------- cretacea, [268], [271].
------- Dixoniana, [268], [271].
Iguana, teeth of, [648].
Iguanodon Mantelli, [691].