Navisolenia aprilei

Original description: Les cellules décrites ici, vont permettre de rattacher le type « scalae » à une espèce actuelle. Elles proviennent de la Méditerranée orientale, d'eaux de surface prélevées le long des côtes d'Israël, en novembre 1964.
Nous les rapportons à un genre nouveau, qui se différencie dans premier critère, des autres genres, par la forme de sa coque, dépourvue d'aiguillons, qui s'amenuise progressivement et régulièrement pour se terminer en pointes effilées. Cette coque est composée de scapholites sans ornementation dans une première phase, puis ceux-ci se différencient en type « scalae » : ce deuxième critère caractérise la nouvelle espèce type Navisolenia n. g. aprili n. sp.
Ce nouveau genre est proche d'Anoplosolenia, cependant il s'en différencie par l'allure de sa coque et par l'élaboration spéciale de ses scapholithes.
La cellule de Navisolenia aprili, longue de 100 à 150 µm, a un diamètre de 30µm dans sa portion moyenne (photo 1) tandis que ses deux extrémités iront en se rétrécissant régulièrement. La portion distale n'est plus formée que par l'association de 2 scapholithes.

Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:

Plot of occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested.
• (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Navisolenia

Navisolenia aprilei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 7-10-2026 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20216 Go to Archive.is to create a permanent copy of this page - citation notes

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