Spirifer

Spirifer Temporal range: Sandbian-Carnian ~460–232 Ma PreꞒ Ꞓ O S D C P T J K Pg N
↑S. perlamellosus, 19mm - pedunculate valve ↓S. striatus: exterior, and interior with lophophore
Scientific classification
Kingdom:	Animalia
Phylum:	Brachiopoda
Class:	Rhynchonellata
Order:	Spiriferida
Family:	Spiriferidae
Genus:	Spirifer Sowerby 1818
Species
See text
Synonyms
Delthyris

Spirifer is a genus of marine brachiopods belonging to the order Spiriferida and family Spiriferidae. Species belonging to the genus lived from the Middle Ordovician (Sandbian) through to the Late Triassic (Carnian) with a global distribution. They were stationary epifaunal suspension feeders.^[1]