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PLECTAMBONITIDAE [1 record]

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Record 1 1977-06-24

English

Subject field(s)
  • Paleontology
OBS

[Brachiopods of the] family Plectambonitidae [have a] median cardinal process growing from [the] notothyrial floor and ankylosed posteriorly to [a] convex chilidium; [the] pseudodeltidium [is] large; [an] apical foramen [is] sporadically persistent in adult shells. [The] pedicle valve [has a] pair of accessory teeth lying anterolaterally to two simple teeth; [the] brachial valve [is] without [an] elevated, lophophore platform, socket ridges [are] flat-lying, subparallel with [the] hinge line; subperipheral rims, possibly representing boundaries of [the] brachial cavity, [are] usually well-developed in both valves; mantle canal systems [are] poorly known but probably saccate in both valves. "L.Ord.-M.Ord."

French

Domaine(s)
  • Paléontologie
OBS

[Les Brachiopodes de la] famille des Plectambonitidae [ont une] valve dorsale [qui] présente des septa ou bourrelets partant de l'extrémité des plaques crurales et formant une sorte de disque viscéral surélevé.

Spanish

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