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PSILOCERATIDAE [1 record]

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Record 1 1977-07-19

English

Subject field(s)
  • Paleontology
OBS

[Ammonoids of the family Psiloceratidae are] Evolute, smooth or with blunt primary ribbing, [the] venter rounder and smooth to nearly smooth or feebly keeled in some. Sutures [are] simple, with [a] retracted suspensive lobes, [the] saddle endings [are] phylloid in some. [The] Aptychus [is] single-valved, with [a] concentrically striated shiny surface. (...) "L. Jur. (Hett. - Sinem. (...]"

French

Domaine(s)
  • Paléontologie
OBS

[La famille des Psiloceratidae est un] Ensemble disparate de formes peu différenciées, à affinités multiples, (...)

Spanish

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