Syntomaria Sous-embranchement (subphylum) des Rhynchonelliformea Classe des Rhynchonellata Ordre des Terebratulida Sous-Ordre des Terebratellidina Super-famille des Megathyridoidea

Genus Syntomaria Cooper, 1982

[Type species= Syntomaria curiosa Cooper, 1982 (p. 20)]

Small, smooth but with prominent growth lines, elongate oval, narrowly biconvex, rectimarginate; beak suberect, attrite, foramen wide, deltidial plates narrow, disjunct. Cardinal process a well-developed transverse myophore; inner hinge plates excavate, uniting on valve floor; septal pillar high, anteriorly inclined, and narrow. Loop annular to incipiently haptoid; descending branches occasionally incomplete.

Present Diagnosis from volume 5 of the Treatise on Invertebrate Paleontology (2006)

Extant Species of Syntomaria

S. curiosa Cooper, 1982

Diagnosis