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 Rectocalathis Seidel & Lüter, 2014
[Type species= Rectocalathis schemmgregoryi Seidel & Lüter, 2014 (p. 4)]

Small eucalathine brachiopod with a smooth to faintly costate shell and an extreme form of epithyrid (subumbonal) pedicle opening towards the ventral side of the animal.


Diagnosis from Seidel & Lüter (2014)

Extant Species of Rectocalathis
  • R. schemmgregoryi Seidel & Lüter, 2014
  • Diagnosis

    Rectocalathis schemmgregoryi
    Seidel & Lüter, 2014

    Type locality: Cruise SO 205 MANGAN, St. EBS 40 (11°47'56"N, 116°49'85"W), 3954 m depth.
    Depth range: 3954 m


    Diagnose - (Seidel & Lüter, 2014)

    Punctate and small, subcircular to pentagonal shell with complete oval foramen perforating the ventral valve. Dorsal valve with long, slightly medially incurved, thick crura with blunt crural processes, no loop. Heavy spiculation within the lophophore and tentacles, and fragile median spiculation in the dorsal mantle.


    from Seidel & Lüter (2014)