Spiriferina is an extinct genus of brachiopods that lived in the Early Jurassic. Its representatives have been reported from Europe, North Africa, Saudi Arabia, and Alaska.Carter, J.L. & Johnson, J.G. (2006) Spiriferinida, [In:] Roger L. Kaesler (ed.), Treatise on Invertebrate Paleontology, Part H, Brachiopoda, Revised. Volume 5: Rhynchonelliformea (part), Boulder, Colorado–Lawrence, Kansas: Geological Society of America and University of Kansas Press, pp. 1877–1937.
The genus used to be treated more widely, so earlier reports were from the Late Silurian to the Middle Jurassic in Asia, Europe, North America, South America, and New Zealand.Spiriferina in the Paleobiology Database
Species The following species have been described within the genus:
Spiriferina abichi Spiriferina alia Spiriferina betacalcis Spiriferina borealis Spiriferina cassiana Spiriferina coreyi Spiriferina elegantissima Spiriferina fortis Spiriferina homfrayi Spiriferina kiparisovae Spiriferina munsterii Spiriferina nicklesi Spiriferina panderi Spiriferina papillosa Spiriferina rostrata Spiriferina roundyi Spiriferina rupicola Spiriferina salomonensis Spiriferina slovenica Spiriferina subfragilis Spiriferina terebratuloides Spiriferina terzadica Spiriferina tornata Spiriferina toulai Spiriferina triplicata Spiriferina walcotti Spiriferina yukonensis However, some of the above-listed species have been transferred to other genera since the original description, for example S. alpina and S. rostrata to the genus Liospiriferina.
References
Further reading
Fossils (Smithsonian Handbooks) by David Ward (Page 89)