Valvulinidae

The Valvulinidae is a family of Paleocene to recent benthic textulariid Foraminifera characterized by trochospiral tests in the early stage which may become uniserial in the later. Walls are of cemented agglutinated material and have cavities created by micro-tubules, i.e. are canaliculate. Apertures have a valvular tooth or flap, at least in early stage, but may become multiple and areal in the later stage.

Valvulinidae Temporal range: Paleocene - Recent.
Scientific classification
Domain:	Eukaryota
(unranked):	SAR
(unranked):	Rhizaria
Superphylum:	Retaria
Phylum:	Foraminifera
Class:	Globothalamea
Order:	Textulariida
Superfamily:	Textulariacea
Family:	Valvulinidae Berthelin, 1880
Subfamilies
Valvulininae, Siphobigenerininae, and Tritaxilininae

Three subfamilies have been defined, the Valvulininae, Siphobigenerininae, and Tritaxilininae.