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LYTOCERATINA [1 record]

Record 1 1977-07-21

English

Subject field(s)
  • Paleontology
OBS

[Ammonites of the suborder lytoceratina have] evolute, loosely coiled, usually round-whorled shells, ornamented with growth lines and commonly flares, rarely ribbed. Sutures [are] with few but very complex elements, with mosslike endings, usually not phylloid; [a] septal lobe [is] present in some. Aptachi [are] single-valved, with shiny surface, striated concentrically (Anaptychus) "Jur.-Cret".

French

Domaine(s)
  • Paléontologie
OBS

[Les Ammonites du sous-ordre des Lytoceratina ont des] coquilles évolutes, [une] section subcirculaire; [un] test mince; suture: éléments suturaux peu nombreux suture souvent persillée, selles bipartites (...)

Spanish

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