Foraminifera taxon details
Australononion Hayward & Parker in Hayward et al., 2025
1844908 (urn:lsid:marinespecies.org:taxname:1844908)
accepted
Genus
Elphidiononion simplex subsp. aoteanum Vella, 1957 accepted as Porosononion aoteanum (Vella, 1957) accepted as Australononion aoteanum (Vella, 1957) (type by original designation)
marine
recent + fossil
neuter
Hayward, B.W., Holzmann, M., Langer, M.R., Parker, J.H., Tsuchiya, M. (2025). Molecular and morphological taxonomy and biogeography of living Cribroelphidiidae, Elphidiellidae, Elphidiidae, Haynesinidae and related taxa (Foraminifera, Rotalioidea). <em>Micropaleontology.</em> 71: 433-808., available online at https://doi.org/10.47894/mpal.71.5.01 [details] Available for editors 
[request]
[request]
Diagnosis Test planispiral, subevolute, bilaterally symmetrical;
sutures radial, slightly curved, incised near the umbilicus,...
Stratigraphy Oligocene–Recent (Hayward et al. 1997a, New
Zealand).
Taxonomic remark This genus is distinguished from other
genera in the Elphidiidae and Cribroelphidiidae by the absence
of ponticuli and...
sutures radial, slightly curved, incised near the umbilicus,...
Diagnosis Test planispiral, subevolute, bilaterally symmetrical;
sutures radial, slightly curved, incised near the umbilicus, flaring
towards the umbilicus which they open into; peripheral profile
rounded; test profile moderately compressed and parallel-sided;
ponticuli and fossettes absent; umbilicus moderately wide; tubercles
or papillae cover earliest chamber(s) in whorl and depressed
parts of umbilicus and sutures; umbilical plug present or absent;
primary cameral aperture is difficult to determine because of the
papillae at the base of the apertural face, but appears to be a row
of three or more small, arched interiomarginal apertures along the
base of the apertural face; test wall finely perforate. [details]
sutures radial, slightly curved, incised near the umbilicus, flaring
towards the umbilicus which they open into; peripheral profile
rounded; test profile moderately compressed and parallel-sided;
ponticuli and fossettes absent; umbilicus moderately wide; tubercles
or papillae cover earliest chamber(s) in whorl and depressed
parts of umbilicus and sutures; umbilical plug present or absent;
primary cameral aperture is difficult to determine because of the
papillae at the base of the apertural face, but appears to be a row
of three or more small, arched interiomarginal apertures along the
base of the apertural face; test wall finely perforate. [details]
Stratigraphy Oligocene–Recent (Hayward et al. 1997a, New
Zealand).
Stratigraphy Oligocene–Recent (Hayward et al. 1997a, New
Zealand). [details]
Zealand). [details]
Taxonomic remark This genus is distinguished from other
genera in the Elphidiidae and Cribroelphidiidae by the absence
of ponticuli and...
Taxonomic remark This genus is distinguished from other
genera in the Elphidiidae and Cribroelphidiidae by the absence
of ponticuli and fossettes and from the Elphidiellidae by the absence
of two rows of openings along the sutures; from Nonion by
the presence of intercameral lacunae, open tuberculate umbilici
and optically radial walls; from Toddinella by having sutures that
flare towards and join the umbilicus compared with the narrow
slit sutural openings that often do not reach the umbilicus in Toddinella;
and from Protelphidium by its finely perforate rather than
coarsely perforate test wall. [details]
genera in the Elphidiidae and Cribroelphidiidae by the absence
of ponticuli and fossettes and from the Elphidiellidae by the absence
of two rows of openings along the sutures; from Nonion by
the presence of intercameral lacunae, open tuberculate umbilici
and optically radial walls; from Toddinella by having sutures that
flare towards and join the umbilicus compared with the narrow
slit sutural openings that often do not reach the umbilicus in Toddinella;
and from Protelphidium by its finely perforate rather than
coarsely perforate test wall. [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Australononion Hayward & Parker in Hayward et al., 2025. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1844908 on 2026-01-14
Date
action
by
original description
Hayward, B.W., Holzmann, M., Langer, M.R., Parker, J.H., Tsuchiya, M. (2025). Molecular and morphological taxonomy and biogeography of living Cribroelphidiidae, Elphidiellidae, Elphidiidae, Haynesinidae and related taxa (Foraminifera, Rotalioidea). <em>Micropaleontology.</em> 71: 433-808., available online at https://doi.org/10.47894/mpal.71.5.01 [details] Available for editors [request]
[request]From editor or global species database
Diagnosis Test planispiral, subevolute, bilaterally symmetrical;sutures radial, slightly curved, incised near the umbilicus, flaring
towards the umbilicus which they open into; peripheral profile
rounded; test profile moderately compressed and parallel-sided;
ponticuli and fossettes absent; umbilicus moderately wide; tubercles
or papillae cover earliest chamber(s) in whorl and depressed
parts of umbilicus and sutures; umbilical plug present or absent;
primary cameral aperture is difficult to determine because of the
papillae at the base of the apertural face, but appears to be a row
of three or more small, arched interiomarginal apertures along the
base of the apertural face; test wall finely perforate. [details]
Stratigraphy Oligocene–Recent (Hayward et al. 1997a, New
Zealand). [details]
Taxonomic remark This genus is distinguished from other
genera in the Elphidiidae and Cribroelphidiidae by the absence
of ponticuli and fossettes and from the Elphidiellidae by the absence
of two rows of openings along the sutures; from Nonion by
the presence of intercameral lacunae, open tuberculate umbilici
and optically radial walls; from Toddinella by having sutures that
flare towards and join the umbilicus compared with the narrow
slit sutural openings that often do not reach the umbilicus in Toddinella;
and from Protelphidium by its finely perforate rather than
coarsely perforate test wall. [details]
From editor or global species database
Image from typetaxon
Image from typetaxon
Image from typetaxon
Image from typetaxon
Image from typetaxon