Cyrtospirifer verneuili

Cyrtospirifer verneuili, also called Spirifer verneuili, is an extinct species of brachiopod. The fossils are present in the Upper Devonian.^[1]

Cyrtospirifer verneuili
Fossil specimen of Cyrtospirifer verneuili from Namur (Belgium), Upper Devonian
Scientific classification
Kingdom:	Animalia
Phylum:	Brachiopoda
Class:	Rhynchonellata
Order:	†Spiriferida
Family:	†Cyrtospiriferidae
Genus:	†Cyrtospirifer
Species:	†C. verneuili
Binomial name
†Cyrtospirifer verneuili (Murchison, 1840)

In Cornwall they have the vernacular name Delabole butterfly, from the appearance of flattened forms in the slates at Delabole.^[2]