Foraminifera taxon details
Rectogordius Alipour & Vachard in Alipour et al., 2013 †
1056302 (urn:lsid:marinespecies.org:taxname:1056302)
accepted
Genus
Rectogordius iranicus Alipour & Vachard in Alipour et al., 2013 † (type by original designation)
- Species Rectogordius afganicus (Filimonova, 2010) †
- Species Rectogordius bangi (Filimonova, 2010) †
- Species Rectogordius beauchampi (Pinard & Mamet, 1998) †
- Species Rectogordius brunsielloides (Kireeva, 1958) †
- Species Rectogordius carnicus (Filimonova, 2010) †
- Species Rectogordius iranicus Alipour & Vachard in Alipour et al., 2013 †
- Species Rectogordius megasphaericus (Gerke, 1952) †
- Species Rectogordius minimus Yarahmadzahi & Vachard, 2019 †
- Species Rectogordius planispiralis (Zheng, 1991) †
- Species Rectogordius rectus (Kireeva, 1958) †
- Species Rectogordius sverdrupensis (Pinard & Mamet, 1998) †
- Species Rectogordius tenuithecus (Kireeva, 1958) †
- Species Rectogordius umbilicatus (Kireeva, 1958) †
marine, brackish, fresh, terrestrial
fossil only
masculine
Alipour, Z.; Hosseini-Nezhad, S. M.; Vachard, D.; Rashidi, K. (2013). The latest Carboniferous-Early Permian Dorud Group of the eastern Alborz (Iran): biostratigraphy and taxonomy of smaller foraminifers. <em>Geological Journal.</em> 48(4)[first online October 2012]: 385-402., available online at https://doi.org/10.1002/gj.2457
page(s): p. 398 [details] Available for editors
[request]
page(s): p. 398 [details] Available for editors
[request]
Fossil range Age. Gzhelian-early Sakmarian.
(Jalali et al. (2021)).
Original description Test discoid to lenticular with parallel flanks and rounded periphery. Diameter small to medium. Proloculus spherical,...
(Jalali et al. (2021)).
Fossil range Age. Gzhelian-early Sakmarian.
(Jalali et al. (2021)). [details]
(Jalali et al. (2021)). [details]
Original description Test discoid to lenticular with parallel flanks and rounded periphery. Diameter small to medium. Proloculus spherical,...
Original description Test discoid to lenticular with parallel flanks and rounded periphery. Diameter small to medium. Proloculus spherical, generally small, followed by a second tubular chamber, almost planispirally coiled (with slight deviations), with six to ten involute whorls. One or two last whorls are semi-evolute to evolute. The increase in height and width of the tubular chamber is slow and regular giving the characteristic profile in axial section. The chamber lumen is at the
concavus stage from the archaediscid nomenclature. Chamber generally undivided, although some species (probably transitional to Septigordius Gaillot and Vachard, 2007) show eventually, at the end of the coiling, some faint and irregularly spaced pseudosepta. Regular and massive axial fillings in the umbilical areas. Wall porcelaneous, entirely black after early diagenesis, occasionally well preserved with the amber colour characteristic of the extant representatives of the class Miliolata. Aperture terminal simple.
Occurrence. This genus has been found in Early Permian sequences of Iran and other countries, such as the Sakmarian of Canadian Arctic; Sakmarian of Donets; Sakmarian of northern Afghanistan (Filimonova, 2010); and upper Asselian of the Carnic Alps (Forke et al., 1998; Vachard and Krainer, 2001a). Consequently, its range seems to be upper Asselian–Sakmarian. Although poorly known, it seems, nevertheless, to be located in the northern Palaeotethys, in the shelf of the Uralian Ocean and the northern part of North America. Hence, it is a biostratigraphic as well as palaeobiogeographic leading form. In the Alborz Mountains, this species is not limited to the Chaman-Saver area, and its presence in the western Alborz (Sajjadi et al., 2005) and eastern Alborz (Taghavi-Anaraki,
1996; Mazaheri, 2003) indicate that this genus is also present in the other Dorud Group sections in the Alborz. It needs to be stated that this genus had previously been misinterpreted and/or misnamed. It appears that due to shallower water depths during the lower Asselian to lower Sakmarian stages around Chaman-Saver, the Rectogordius fossil is more abundant relative to other parts of the Alborz.
(Alipour and Vachard in Alipour et al. (2013)). [details]
concavus stage from the archaediscid nomenclature. Chamber generally undivided, although some species (probably transitional to Septigordius Gaillot and Vachard, 2007) show eventually, at the end of the coiling, some faint and irregularly spaced pseudosepta. Regular and massive axial fillings in the umbilical areas. Wall porcelaneous, entirely black after early diagenesis, occasionally well preserved with the amber colour characteristic of the extant representatives of the class Miliolata. Aperture terminal simple.
Occurrence. This genus has been found in Early Permian sequences of Iran and other countries, such as the Sakmarian of Canadian Arctic; Sakmarian of Donets; Sakmarian of northern Afghanistan (Filimonova, 2010); and upper Asselian of the Carnic Alps (Forke et al., 1998; Vachard and Krainer, 2001a). Consequently, its range seems to be upper Asselian–Sakmarian. Although poorly known, it seems, nevertheless, to be located in the northern Palaeotethys, in the shelf of the Uralian Ocean and the northern part of North America. Hence, it is a biostratigraphic as well as palaeobiogeographic leading form. In the Alborz Mountains, this species is not limited to the Chaman-Saver area, and its presence in the western Alborz (Sajjadi et al., 2005) and eastern Alborz (Taghavi-Anaraki,
1996; Mazaheri, 2003) indicate that this genus is also present in the other Dorud Group sections in the Alborz. It needs to be stated that this genus had previously been misinterpreted and/or misnamed. It appears that due to shallower water depths during the lower Asselian to lower Sakmarian stages around Chaman-Saver, the Rectogordius fossil is more abundant relative to other parts of the Alborz.
(Alipour and Vachard in Alipour et al. (2013)). [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Rectogordius Alipour & Vachard in Alipour et al., 2013 †. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=1056302 on 2025-12-15
Date
action
by
original description
Alipour, Z.; Hosseini-Nezhad, S. M.; Vachard, D.; Rashidi, K. (2013). The latest Carboniferous-Early Permian Dorud Group of the eastern Alborz (Iran): biostratigraphy and taxonomy of smaller foraminifers. <em>Geological Journal.</em> 48(4)[first online October 2012]: 385-402., available online at https://doi.org/10.1002/gj.2457
page(s): p. 398 [details] Available for editors [request]
page(s): p. 398 [details] Available for editors
[request]From editor or global species database
Fossil range Age. Gzhelian-early Sakmarian.(Jalali et al. (2021)). [details]
Original description Test discoid to lenticular with parallel flanks and rounded periphery. Diameter small to medium. Proloculus spherical, generally small, followed by a second tubular chamber, almost planispirally coiled (with slight deviations), with six to ten involute whorls. One or two last whorls are semi-evolute to evolute. The increase in height and width of the tubular chamber is slow and regular giving the characteristic profile in axial section. The chamber lumen is at the
concavus stage from the archaediscid nomenclature. Chamber generally undivided, although some species (probably transitional to Septigordius Gaillot and Vachard, 2007) show eventually, at the end of the coiling, some faint and irregularly spaced pseudosepta. Regular and massive axial fillings in the umbilical areas. Wall porcelaneous, entirely black after early diagenesis, occasionally well preserved with the amber colour characteristic of the extant representatives of the class Miliolata. Aperture terminal simple.
Occurrence. This genus has been found in Early Permian sequences of Iran and other countries, such as the Sakmarian of Canadian Arctic; Sakmarian of Donets; Sakmarian of northern Afghanistan (Filimonova, 2010); and upper Asselian of the Carnic Alps (Forke et al., 1998; Vachard and Krainer, 2001a). Consequently, its range seems to be upper Asselian–Sakmarian. Although poorly known, it seems, nevertheless, to be located in the northern Palaeotethys, in the shelf of the Uralian Ocean and the northern part of North America. Hence, it is a biostratigraphic as well as palaeobiogeographic leading form. In the Alborz Mountains, this species is not limited to the Chaman-Saver area, and its presence in the western Alborz (Sajjadi et al., 2005) and eastern Alborz (Taghavi-Anaraki,
1996; Mazaheri, 2003) indicate that this genus is also present in the other Dorud Group sections in the Alborz. It needs to be stated that this genus had previously been misinterpreted and/or misnamed. It appears that due to shallower water depths during the lower Asselian to lower Sakmarian stages around Chaman-Saver, the Rectogordius fossil is more abundant relative to other parts of the Alborz.
(Alipour and Vachard in Alipour et al. (2013)). [details]
From editor or global species database
Image from typetaxon