Sous-embranchement (subphylum) des Rhynchonelliformea  
Classe des Rhynchonellata 
Ordre des Rhynchonellida 
Super-famille des Pugnacoidea 
Super-famille des Dimerelloidea 
Super-famille des Norelloidea 
Super-famille des Hemithiridoidea 

Genus Neorhynchia Thomson, 1915
[Type species= Hemithyris strebeli Dall, 1908 (p. 441)]
Suboval to pentagonal, gently ventribiconvex, typically sulcate, smooth; broad but deep, arcuate anterior commissure; beak short, hypothyrid; foramen moderate, deltidial plates disjunct. Crura short, gently arcuiform.

Diagnosis from volume 4 of the
Treatise on Invertebrate Paleontology (2002)

Extant Species of Neorhynchia
  • N. strebeli (Dall, 1908)
  • Diagnosis

    Neorhynchia strebeli   (Dall, 1908)

    Type locality: “U.S.S. Albatross, station 4721, in Mid Pacific, in 2084 fathoms” [16°48.3’N, 62°20.3’E, 3860 m].
    Depth range: 1806 - 4682 m

    Hemithyris strebeli Dall, 1908 (p. 441-442)
    Neorhynchia strebeli Thomson, 1915 (p. 388)
    Neorhynchia profunda Cooper, 1972
    Neorhynchia abyssa Cooper, 1972
    Neorhynchia strebeli rectimarginata Forster, 1974

    Diagnose in preparation -