Foraminifera taxon details
Chablaisia Septfontaine, 1978 †
739307 (urn:lsid:marinespecies.org:taxname:739307)
accepted
Genus
Pfenderina chablaisensis Septfontaine, 1977 † accepted as Chablaisia chablaisensis (Septfontaine, 1977) † (type by original designation)
marine, brackish, fresh, terrestrial
fossil only
feminine
Septfontaine, M. (1978). Chablaisia n. gen., un nouveau genre de Foraminifère du Jurassique briançonnais (Nappe des Préalpes Médianes). <em>Arch. Sc. Genève.</em> 31(1): 39-50., available online at https://www.researchgate.net/publication/287783527
page(s): p. 42 [details] Available for editors
[request]
page(s): p. 42 [details] Available for editors
[request]
Diagnosis Test free, numerous broad and low chambers coiled in a very low trochospiral, interior partially subdivided by two...
Diagnosis Test free, numerous broad and low chambers coiled in a very low trochospiral, interior partially subdivided by two spiraling pillars that connect adjacent septa across the chamber lumen and are continuous from one chamber to the next, pillars also interconnected by an arched transverse plate that is continuous with the base of the septal face below the aperture and leaves a continuous spiralling septal canal against the outer wall of the previous whorl; wall agglutinated, microgranular in appearance, but incorporating fine calcareous grains, outer layer imperf orate, and inner part keriothecalike; aperture an areal arch near the base of the apertural face, the portion of the septum against the preceding whorl giving the appearance of a chomatal deposit in section. M. or U. Jurassic (between U. Aalenian and M. Oxfordian); France; Switzerland. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Chablaisia Septfontaine, 1978 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=739307 on 2025-12-19
Date
action
by
original description
Septfontaine, M. (1978). Chablaisia n. gen., un nouveau genre de Foraminifère du Jurassique briançonnais (Nappe des Préalpes Médianes). <em>Arch. Sc. Genève.</em> 31(1): 39-50., available online at https://www.researchgate.net/publication/287783527
page(s): p. 42 [details] Available for editors [request]
identification resource Septfontaine, M. (2017). Identification index-card Chablaisia. For comments on identification card project, see preliminary notes 1 and 2. <em>Project: Etablissement d'un catalogue des grands foraminifères mésozoïques des plates-formes carbonatées en bordure de la Téthys, du Maroc à l'Oman (travail en cours) - Data for the establishment of a catalogue of larger foraminifera from the tethyan margins (north & south) carbonate platforms, from Morocco to Oman (work in progress).</em> 1-26., available online at https://doi.org/10.13140/RG.2.2.34814.08008 [details] Available for editors [request]
page(s): p. 42 [details] Available for editors
[request]identification resource Septfontaine, M. (2017). Identification index-card Chablaisia. For comments on identification card project, see preliminary notes 1 and 2. <em>Project: Etablissement d'un catalogue des grands foraminifères mésozoïques des plates-formes carbonatées en bordure de la Téthys, du Maroc à l'Oman (travail en cours) - Data for the establishment of a catalogue of larger foraminifera from the tethyan margins (north & south) carbonate platforms, from Morocco to Oman (work in progress).</em> 1-26., available online at https://doi.org/10.13140/RG.2.2.34814.08008 [details] Available for editors
[request]From editor or global species database
Diagnosis Test free, numerous broad and low chambers coiled in a very low trochospiral, interior partially subdivided by two spiraling pillars that connect adjacent septa across the chamber lumen and are continuous from one chamber to the next, pillars also interconnected by an arched transverse plate that is continuous with the base of the septal face below the aperture and leaves a continuous spiralling septal canal against the outer wall of the previous whorl; wall agglutinated, microgranular in appearance, but incorporating fine calcareous grains, outer layer imperf orate, and inner part keriothecalike; aperture an areal arch near the base of the apertural face, the portion of the septum against the preceding whorl giving the appearance of a chomatal deposit in section. M. or U. Jurassic (between U. Aalenian and M. Oxfordian); France; Switzerland. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
Image from typetaxon
Image from typetaxon
Image from typetaxon
Image from typetaxon