Foraminifera families

Peneroplidae is a family of foraminifera in the superfamily Soritoidea.

Ammodiscidae is a family of foraminifera in the order Spirillinida. It was described by August Emanuel von Reuss in 1862. Ammodiscidae is the sole member of the monotypic superfamily Ammodiscoidea, which in turn is the sole member of the monotypic suborder Ammodiscina.

Gavelinellidae is a family of foraminifera belonging to the superfamily Chilostomelloidea and the order Rotaliida. It is found in marine sediments of the Barremian (early Cretaceous) and exists into the present-day (Holocene).

Miliolidae is a family in the superfamily Milioloidea of miliolid foraminifera.

Hauerinidae is a large and diverse family of miliolid forams (Loeblich & Tappan, 1988) that includes genera distributed among various subfamilies in the Treatise (Loelich &Tappan 1964) as well as genera named and described since.

The Rzehakinidae is a family of Lower Cretaceous to recent formaminifera that resemble the calcareous imperforate Miliolidae but which are constructed of finely agglutinated material that veneers an organic base. Tests are with two, or less commonly three, chambers per whorl, which are commonly added in various planes. In form they are generally ovoid.