Terminology; Preparation of specimens; Range and distribution of the productoidea; External mophology of the productoidea; Internal morphology of the productoidea; Life habits of the productoidea; Origin of the productoidea; Classification of the productoidea; Systematic descriptions.
Terminology; Preparation of specimens; Range and distribution of the productoidea; External mophology of the productoidea; Internal morphology of the productoidea; Life habits of the productoidea; Origin of the productoidea; Classification of the productoidea; Systematic descriptions.