Br@chNet
Laqueus

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

 
 
 
 
 


Genus Laqueus Dall, 1970


[Type species= Laqueus erythaeus Dall, 1920 (p. 123)]

Medium to large, variably ovate, subpentagonal to ligate, biconvex, smooth; anterior commissure rectimarginate; beak low, erect, with distinct beak ridges, foramen medium, mesothyrid to permesothyrid; either symphytium or conjunct deltidial plates. hinge teeth with ventrally recessive dental plates; pedicle collar sessile. cardinalia with inner and outer hinge plates separated by crural bases; inner hinge plates uniting with median septum to form septalium; cardinal process a very short, transverse myophore; mantle canals spiculate; adult loop bilateral.

Miocene-Present

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

Extant Species of Laqueus
  • L. erythaeus Dall 1920
  • L. rubellus (Sowerby, 1846)
  • L. suffusus (Dall, 1870)
  • L. jeffreysi Dall, 1877
  • L. blanfordi (Dunker, 1882)
  • L. vancouveriensis Davidson, 1887
  • L. morsei Dall, 1908
  • L. quadratus Yabe et Hatai, 1934
  • L. proprius Yabe et Hatai, 1934
  • L. orbicularis Yabe et Hatai, 1934
  • L. concentricus Yabe et Hatai, 1936
  • L. pacifica Hatai, 1936
  • L. pallidus Hatai, 1939
  • Diagnosis




    Diagnosis



    Laqueus erythaeus   Dall, 1920

    Type locality: Santa Catalina (California, USA)
    Depth range: 2285 - 2342 m

    Laqueus californianus [or L. californicus] : the specimens recorded in California, USA (see Mackinnon & Lee, 2000)

    Diagnosis in preparation -



    Laqueus vancouveriensis  Davidson, 1887

    Type locality: off Vancouver Island (British Columbia, Canada)
    Depth range: 2285 - 2342 m

    Laqueus californianus [or L. californicus] : the specimens recorded in Washington State and Alaska (USA), in British Colombia (Canada) (see Mackinnon & Lee, 2000)

    Diagnosis in preparation -


    From Croker Island, Indian Arm, British Columbia (Canada), depth 20 m
    © Neil McDaniel