Foraminifera taxon details

Dictyoconus Blanckenhorn, 1900 †

Dictyoconus egyptiensis (Chapman, 1900)
Dictyoconus egyptiensis (Chapman, 1900)

739357  (urn:lsid:marinespecies.org:taxname:739357)

  1. Biota
  2. Chromista (Kingdom)
  3. Harosa (Subkingdom)
  4. Rhizaria (Infrakingdom)
  5. Foraminifera (Phylum)
  6. Globothalamea (Class)
  7. Textulariana (Subclass)
  8. Loftusiida (Order)
  9. Orbitolinina (Suborder)
  10. Orbitolinoidea (Superfamily)
  11. Orbitolinidae (Family)
  12. Dictyoconinae † (Subfamily)
  13. Dictyoconus † (Genus)
accepted
Genus
Rogerella Gallardo-García & Serra-Kiel, 2016 † · unaccepted (Subjective junior synonym Opinion...)  
Subjective junior synonym Opinion of Özgen-Erdem et al. (2020)

Ordering

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Children Display

  1. Species Dictyoconus aydimi (Gallardo-García & Serra-Kiel, 2016) †
  2. Species Dictyoconus bakhtiari Schlagintweit, Rashidi & Babadipour, 2016 †
  3. Species Dictyoconus daviesi Silvestri, 1939 †
  4. Species Dictyoconus egyptiensis (Chapman, 1900) †
  5. Species Dictyoconus indicus Davies, 1930 †
  6. Species Dictyoconus pachymarginalis Schroeder, 1965 †
  7. Species Dictyoconus melinauensis Adams, 1965 † (uncertain > taxon inquirendum, Opinion of Schlagintweit (2025))
  8. Species Dictyoconus parvula Cushman & Campbell, 1943 † (uncertain > taxon inquirendum, Opinion of Schlagintweit (2020) [Not a Dictyoconus, revision pending])
  9. Species Dictyoconus saipanensis Cole, 1957 † (uncertain > taxon inquirendum, Opinion of Schlagintweit (2025))
  10. Subgenus Dictyoconus (Carinoconus) Cherchi & Schoeder, 1982 † accepted as Carinoconus Cherchi & Schroeder, 1982 † (Opinion of Loeblich and Tappan (1987) nomen translatum)
  11. Subgenus Dictyoconus (Cushmania) Hottinger & Drobne, 1980 † accepted as Cushmania Silvestri, 1925 † (Opinion of Loeblich &Tappan (1987) nomen translatum)
    1. Species Dictyoconus (Cushmania) americanus (Cushman, 1919) accepted as Cushmania americana (Cushman, 1919) †
  12. Subgenus Dictyoconus (Paleodictyoconus) Moullade, 1965 † accepted as Paleodictyoconus Moullade, 1965 † (Opinion of Loeblich & Tappan, 1987 Nomen translatum)
  13. Species Dictyoconus africanus Silvestri, 1939 † accepted as Dictyoconus egyptiensis (Chapman, 1900) † (unaccepted > junior subjective synonym, Opinion of Hottinger and Drobne (1980) and Schlagintweit (2025))
  14. Species Dictyoconus algerianus Cherchi & Schroeder, 1982 † accepted as Carseyella algeriana (Cherchi & Schroeder, 1982) † (Opinion of Schlagintweit (2020))
  15. Species Dictyoconus americanus (Cushman, 1919) † accepted as Cushmania americana (Cushman, 1919) †
  16. Species Dictyoconus arabicus Henson, 1948 † accepted as Montseciella arabica (Henson, 1948) † (Opinion of Schröder et al. (2002))
  17. Species Dictyoconus arietinus Silvestri, 1939 † accepted as Dictyoconus egyptiensis (Chapman, 1900) † (unaccepted > junior subjective synonym, opinion of Schlagintweit (2025))
  18. Species Dictyoconus balkanicus Peybernès & Cugny, 1977 † accepted as Montseciella arabica (Henson, 1948) † (Subjective junior synonym Opinion of Baud et al. (1994), Cherchi and Schroeder (1999), Schlagintweit (2020))
  19. Species Dictyoconus balsilliei (Davies, 1930) † accepted as Daviesiconus balsilliei (Davies, 1930) †
  20. Species Dictyoconus baskilensis Sirel, 2009 † accepted as Pseudofallotella persica (Hottinger & Drobne, 1980) † (unaccepted > junior subjective synonym, Subjective junior synonym Opinion of Serra-Kiel et al. (2016))
  21. Species Dictyoconus cayeuxi Lucas, 1938 † accepted as Lucasella cayeuxi (Lucas, 1938) † accepted as Gutnicella cayeuxi (Lucas, 1938) † (Opinion of Gutnic and Moullade (1967))
  22. Species Dictyoconus chimbuensis Binnekamp, 1973 † accepted as Dictyoconus daviesi Silvestri, 1939 † (unaccepted > junior subjective synonym, Opinion of Schlagintweit (2025))
  23. Species Dictyoconus codon Woodring, 1924 † accepted as Cushmania puilboreauensis (Woodring, 1924) † (Opinion of Woodring (1932), Hottinger and Drobne (1980) [B-forms])
  24. Species Dictyoconus cookei (Moberg, 1928) † accepted as Fallotella cookei (Moberg, 1928) †
  25. Species Dictyoconus coralloides Blanckenhorn, 1900 † accepted as Dictyoconella coralloides Blanckenhorn Em. Henson, 1948 †
  26. Species Dictyoconus cuvillieri Foury, 1963 † accepted as Paleodictyoconus cuvillieri (Foury, 1963) † (Type species of Paleodictyoconus)
  27. Species Dictyoconus floridanus (Cole, 1941) † accepted as Fallotella floridana (Cole, 1941) †
  28. Species Dictyoconus fontabellensis (Vaughan, 1928) † accepted as Cushmania fontabellensis Vaughan, 1928 †
  29. Species Dictyoconus gracilis Silvestri, 1939 † accepted as Dictyoconus daviesi Silvestri, 1939 † (unaccepted > junior objective synonym, Opinion of Schlagintweit (2025))
  30. Species Dictyoconus gunteri Moberg, 1928 † accepted as Fallotella cookei (Moberg, 1928) † (possible species of the genus Fallotella or Cushmania - Opinion of Schagintweit (2025))
  31. Species Dictyoconus maynci (Chevalier, 1961) † accepted as Paracoskinolina maynci (Chevalier, 1961) †
  32. Species Dictyoconus mosae Hofker, 1955 † accepted as Abrardia mosae (Hofker, 1955) † (Type species of Abrardia)
  33. Species Dictyoconus puilboreauensis Woodring, 1924 † accepted as Cushmania puilboreauensis (Woodring, 1924) † (Opinion of Serra-Kiel et al. (2007))
  34. Species Dictyoconus reicheli Guillaume, 1956 † accepted as Paracoskinolina reicheli (Guillaume, 1956) † (Opinion of Arnaud-Vanneau (1980), Schlagintweit (2020))
  35. Species Dictyoconus valentinus Almela, 1946 † accepted as Neorbitolinopsis conulus (Douvillé, 1912) † (Subjective junior synonym Opinion of Schroeder (1965), Schlagintweit (2020))
  36. Species Dictyoconus vercorii Arnaud-Vanneau, 1980 † accepted as Vanneauina vercorii (Arnaud-Vanneau, 1980) † (Type species of Vanneauina)
  37. Species Dictyoconus walnutensis (Carsey, 1926) † accepted as Carseyella walnutensis (Carsey, 1926) † (Type species of Carseyella)
  38. Subgenus Dictyoconus (Dictyoconus) Blanckenhorn, 1900 † represented as Dictyoconus Blanckenhorn, 1900 †
    1. Species Dictyoconus (Dictyoconus) turriculus Hottinger & Drobne, 1980 † accepted as Schroedericonus turriculus (Hottinger & Drobne, 1980) † (Type species of Schroedericonus)
  39. Species Dictyoconus turriculus Hottinger & Drobne, 1980 † represented as Dictyoconus (Dictyoconus) turriculus Hottinger & Drobne, 1980 † accepted as Schroedericonus turriculus (Hottinger & Drobne, 1980) †
marine, brackish, fresh, terrestrial
fossil only
masculine
Blanckenhorn, M. (1900). Neues zur Geologie und Paläontologie Aegyptens. II. Das Palaeogen. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 52: 403-479., available online at https://www.biodiversitylibrary.org/page/43675398
page(s): p. XX; note: Nom. cons. ICZN Opinion 585 [details] 
Diagnosis Megalospheric tests conical to cylindrical, up to 1.5 mm in height and up to 1.1 mm in diameter, early stage with globular...  
Diagnosis Megalospheric tests conical to cylindrical, up to 1.5 mm in height and up to 1.1 mm in diameter, early stage with globular protoconch and hemispherical deuteroconch, and by a large excentric trochospire of some thirty chambers, with axis of coiling up to 90¡ from that of the later cylindrical part of twenty to twentyfive discoidal rectilinear chambers, trochospiral part compressed and elliptical in vertical section, with sharply angular carina, until the beginning of the rectilinear part, the later half of the trochospiral chambers subdivided by two orders of vertical beams in the relatively wide marginal zone, the beams of successive chambers commonly aligned but lacks any horizontal rafters, pillars present in the central zone, those of successive chambers alternating in position, central zone filled by secondary deposits, base of the test flat to slightly inflated; microspheric test lower conical, up to 2.1 mm in height and 3.0 mm in breadth of the base, early microspheric stage unknown, probably trochospiral; wall finely agglutinated in the microgranular calcareous base; apertural openings subvertical at the base of pillars in the central zone, the openings at the margin of the radial zone being most evident in section. U. Albian to L. Cenomanian; Spain, France. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]

Diagnosis Test conical, megalospheric embryo with spherical eccentric proloculus and hemispherical deuteroconch located below the...  
Diagnosis Test conical, megalospheric embryo with spherical eccentric proloculus and hemispherical deuteroconch located below the apex, followed by short series of almost planispiral chambers and then by more numerous rectilinear chambers, microspheric generation with numerous spiraling chambers prior to becoming rectilinear; wall with thin marginal epidermis covering the long widely spaced primary exoskeletal beams, two orders of intercalated shorter beams, and two orders of horizontal partitions or rafters in each chamber resulting in a complex reticular subepidermal network; numerous endoskeletal pillars may partially encircle the apertural pores; aperture a series of pores over the base of the cone. L. Cretaceous (Aptian) to Oligocene; cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Dictyoconus Blanckenhorn, 1900 †. Accessed at: https://marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=739357 on 2026-01-11
Date
action
by
2013-09-04 09:28:16Z
created
Hayward, Bruce W.
2017-11-27 12:58:52Z
changed
Le Coze, François
2018-09-17 09:15:30Z
changed
Le Coze, François

original description Blanckenhorn, M. (1900). Neues zur Geologie und Paläontologie Aegyptens. II. Das Palaeogen. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 52: 403-479., available online at https://www.biodiversitylibrary.org/page/43675398
page(s): p. XX; note: Nom. cons. ICZN Opinion 585 [details] 

original description (of Dictyoconus (Dictyoconus) Blanckenhorn, 1900 †) Blanckenhorn, M. (1900). Neues zur Geologie und Paläontologie Aegyptens. II. Das Palaeogen. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 52: 403-479., available online at https://www.biodiversitylibrary.org/page/43675398 [details] 

original description (of Rogerella Gallardo-García & Serra-Kiel, 2016 †) Serra-Kiel, J.; Gallardo-García, A.; Razin, P.; Robinet, J.; Roger, J.; Grelaud, C.; Leroy, S.; Robin, C. (2016). Middle Eocene-Early Miocene larger foraminifera from Dhofar (Oman) and Socotra Island (Yemen). <em>Arabian Journal of Geosciences.</em> 9(5): 1-95., available online at https://doi.org/10.1007/s12517-015-2243-3
page(s): p. 50 [details] Available for editors  PDF available [request]

status source International Commission on Zoological Nomenclature. (1961). Opinion 585 Dictyoconus Blanckenhorn, 1900 (Rhizopoda, Foraminifera) added to the Official List of Generic Names in Zoology. <em>Bulletin of Zoological Nomenclature.</em> 18: 99-100., available online at https://www.biodiversitylibrary.org/page/12220494#page/125/ [details] 
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
From editor or global species database
Diagnosis Megalospheric tests conical to cylindrical, up to 1.5 mm in height and up to 1.1 mm in diameter, early stage with globular protoconch and hemispherical deuteroconch, and by a large excentric trochospire of some thirty chambers, with axis of coiling up to 90¡ from that of the later cylindrical part of twenty to twentyfive discoidal rectilinear chambers, trochospiral part compressed and elliptical in vertical section, with sharply angular carina, until the beginning of the rectilinear part, the later half of the trochospiral chambers subdivided by two orders of vertical beams in the relatively wide marginal zone, the beams of successive chambers commonly aligned but lacks any horizontal rafters, pillars present in the central zone, those of successive chambers alternating in position, central zone filled by secondary deposits, base of the test flat to slightly inflated; microspheric test lower conical, up to 2.1 mm in height and 3.0 mm in breadth of the base, early microspheric stage unknown, probably trochospiral; wall finely agglutinated in the microgranular calcareous base; apertural openings subvertical at the base of pillars in the central zone, the openings at the margin of the radial zone being most evident in section. U. Albian to L. Cenomanian; Spain, France. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]

Diagnosis Test conical, megalospheric embryo with spherical eccentric proloculus and hemispherical deuteroconch located below the apex, followed by short series of almost planispiral chambers and then by more numerous rectilinear chambers, microspheric generation with numerous spiraling chambers prior to becoming rectilinear; wall with thin marginal epidermis covering the long widely spaced primary exoskeletal beams, two orders of intercalated shorter beams, and two orders of horizontal partitions or rafters in each chamber resulting in a complex reticular subepidermal network; numerous endoskeletal pillars may partially encircle the apertural pores; aperture a series of pores over the base of the cone. L. Cretaceous (Aptian) to Oligocene; cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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From editor or global species database

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