WoRMS taxon details
Robertinina
856670 (urn:lsid:marinespecies.org:taxname:856670)
Loeblich & Tappan, 1984
accepted
Suborder
- Superfamily Ceratobuliminoidea Cushman, 1927
- Superfamily Robertinoidea Reuss, 1850
marine, fresh, terrestrial
recent + fossil
Loeblich, A. R.; Tappan, H. (1984). Suprageneric Classification of the Foraminiferida (Protozoa). <em>Micropaleontology.</em> 30(1): 1-70., available online at https://doi.org/10.2307/1485456 [details] Available for editors 
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Description Emended diagnosis. Robertinida with inner-chamber structures attached or fused to the aperture.
Stratigraphic...
Stratigraphic...
Description Emended diagnosis. Robertinida with inner-chamber structures attached or fused to the aperture.
Stratigraphic distribution. Early Jurassic (Hettangian)– Holocene.
Remarks. As Haynes (1990) noted in the classification of Loeblich & Tappan (1987), robertinins were inaccurately defined as planispiral to trochospiral. Although mostly trochospiral and sometimes planispiral, the robertinins may present other modes of coiling (e.g., uncoiled uniserial final stage in Colomia and Stedumia). The internal plates observed in Robertinina representatives do not entirely divide the chambers. Chambers may be subdivided (e.g., in Robertina), but this subdivision is related to a wall infolding.
(Rigaud et al. (2015)). [details]
Stratigraphic distribution. Early Jurassic (Hettangian)– Holocene.
Remarks. As Haynes (1990) noted in the classification of Loeblich & Tappan (1987), robertinins were inaccurately defined as planispiral to trochospiral. Although mostly trochospiral and sometimes planispiral, the robertinins may present other modes of coiling (e.g., uncoiled uniserial final stage in Colomia and Stedumia). The internal plates observed in Robertinina representatives do not entirely divide the chambers. Chambers may be subdivided (e.g., in Robertina), but this subdivision is related to a wall infolding.
(Rigaud et al. (2015)). [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Robertinina. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=856670 on 2026-05-22
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Nomenclature
original description
Loeblich, A. R.; Tappan, H. (1984). Suprageneric Classification of the Foraminiferida (Protozoa). <em>Micropaleontology.</em> 30(1): 1-70., available online at https://doi.org/10.2307/1485456 [details] Available for editors [request]
[request]Other
additional source
Rigaud, S.; Martini, R.; Vachard, D. (2015). Early evolution and new classification of the order Robertinida (Foraminifera). <em>The Journal of Foraminiferal Research.</em> 45(1): 3-28., available online at https://doi.org/10.2113/gsjfr.45.1.3 [details] Available for editors [request]
[request]From editor or global species database
Description Emended diagnosis. Robertinida with inner-chamber structures attached or fused to the aperture. Stratigraphic distribution. Early Jurassic (Hettangian)– Holocene.
Remarks. As Haynes (1990) noted in the classification of Loeblich & Tappan (1987), robertinins were inaccurately defined as planispiral to trochospiral. Although mostly trochospiral and sometimes planispiral, the robertinins may present other modes of coiling (e.g., uncoiled uniserial final stage in Colomia and Stedumia). The internal plates observed in Robertinina representatives do not entirely divide the chambers. Chambers may be subdivided (e.g., in Robertina), but this subdivision is related to a wall infolding.
(Rigaud et al. (2015)). [details]
Diagnosis Test planispirally to trochospirally enrolled; chambers provided with internal partition that attaches near apertural foramen; wall of hyaline, perforate, ultrastructurally and optically radiate aragonite (orthorhombic crystal form of calcium carbonate), the hexagonal prisms with c-axis normal to the wall surface and basal pinacoid parallel to the surface, prisms in bundles surrounded by organic sheaths; extremely fine wall perforations may be localized in pore fields. M. Triassic to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
