The Pasco Plain type is a Middle Woodland and Mississippian pottery type from central Florida and central Gulf Coast. According to Willey 1949:446-447, the type might be coiled, and possesses a limestone temper and coarse paste texture. 

As described by Willey 1949:446-447:

Definition as a type: By Goggin (1948a) from central Florida. The following description is a condensation of his account.

Ware characteristics: Probably coiled. Heavily tempered with fine to large limestone lumps. These often leach-out leaving holes in surface. Paste texture is coarse. Color ranges from gray to tan to black. Fire-clouded. Surfaces poorly smoothed and uneven.

Form: Open and slightly constricted bowls with unmodified rims.

Geographical range of type: The southwestern part of the central Florida area may be the hearth of the type, but it also extends out to the central Gulf Coast.

Chronological position of type: Weeden Island I and II. Possibly has an even greater time range.

Relationships of type: May be related to Perico Plain, a crushed-limestone tempered type of the Manatee region which is, apparently earlier.

Bibliography: Goggin (1948a)