Dallithyris Sous-embranchement (subphylum) des Rhynchonelliformea   Classe des Rhynchonellata  Ordre des Terebratulida  Sous-ordre des Terebratulidina  Super-famille des Terebratuloidae  Super-famille des Dyscolioidae  Super-famille des Cancellothyroidea

Genus Dallithyris Muir-Wood, 1959

[= Epacrosina Cooper, 1983] [Type species = Liothyrina fulva Blochmann, 1913 (p. 113)]

Medium to large, subtrigonal to subpentagonal; ventribiconvex, anterior commissure rectimarginate to broadly uniplicate; beak suberect, short, labiate; foramen large, submesothyrid; symphytium short; cardinal process small semiellipse; outer hinge plates broadly triangular, crural bases poorly defined; loop narrow, variable.

?Eocene, Pliocene - Present Diagnosis from volume 5 of the Treatise on Invertebrate Paleontology (2006) NOTA: According to the ICZN (2000) this species name cited by Blochmann (1906, 1908) failing to conform to Article 12 must be considered as a nomen nudum until its real description by Blochmann in 1913 (p. 113-114). In the same way, Blochman (1913, p. 113) states: "the species Terebratula (Liothyrina) fulva, created by me in 1908, which was known hitherto only by one single empty shell, obtained by the Challenger expedition from Twofold Bay, on the South-East Coast of Australia."

Extant Species of Dallithyris

D. fulva (Blochmann, 1913) D. murrayi Muir-Wood, 1959 ? D. dubia Cooper, 1981 D. pacifica Bitner, 2006 D. tahitiensis Bitner, 2014

Diagnosis Diagnosis Diagnosis Diagnosis

FIGURES : Dallithyris      Geographic distribution