Intended to contribute toward the understanding of paragraph and discourse structure, this study is based on the Totonac language as it comprises the "most extensive and involved system of clauses" seen by the authors and because the generation of the 396 verbal types of this system from a kernel of 11 types is "very symmetric and regular." The following features are noted: (1) contrasting types of paragraph and discourse structure are presented on both levels; (2) each type is represented in a formula; (3) types are shown to comprise systems; (4) tree structures are given for individual examples of the various types; and (5) in all these respects, paragraph and discourse are shown to be fundamentally no different from sentence, clause, phrase, or even word levels. A rationale of the present description is given in the Introduction. Sections deal with clause, sentence, paragraph, and discourse structure. Appended are a pronominal-tense system of the Totonac verb, and lists of abbreviations and clause types. Charts and tree diagrams are included. (AMM)