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Foraminifera taxon detailsAmmocycloloculina Maync, 1958 †
 738948 (urn:lsid:marinespecies.org:taxname:738948)
accepted
Genus
Spirocyclina erratica Joukowsky & Favre, 1913 † accepted as Ammocycloloculina erratica (Joukowsky & Favre, 1913) † (type by original designation)
marine,
fossil only
feminine
Maync, W. (1958). Ammocycloloculina n. gen., an unknown foraminiferal genus. <em>Contributions from the Cushman Foundation for Foraminiferal Research.</em> 3: 53-57.
page(s): p. 53 [details]
Diagnosis Test free, discoidal, large, up to more than 14 mm in diameter and 0.71 mm thick near the periphery, with early close...
Diagnosis Test free, discoidal, large, up to more than 14 mm in diameter and 0.71 mm thick near the periphery, with early close planispiral coil of about six chambers followed by a fanlike stage of strongly embracing chambers and finally by up to twelve wholly cyclical chambers, circular sutures slightly depressed; wall with imperforate microgranular epidermis, interior more coarsely agglutinated, including both quartz and calcareous particles and shell fragments, resulting in a very rough and irregular chamber interior, but without subepidermal network or radial partitions; aperture multiple, a series of irregularly spaced pores, piercing the septa as seen in equatorial section. L. Cretaceous (Infravalangian); France. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Ammocycloloculina Maync, 1958 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=738948 on 2025-05-21
Date action by
original description
Maync, W. (1958). Ammocycloloculina n. gen., an unknown foraminiferal genus. <em>Contributions from the Cushman Foundation for Foraminiferal Research.</em> 3: 53-57.
page(s): p. 53 [details] From editor or global species database
Diagnosis Test free, discoidal, large, up to more than 14 mm in diameter and 0.71 mm thick near the periphery, with early close planispiral coil of about six chambers followed by a fanlike stage of strongly embracing chambers and finally by up to twelve wholly cyclical chambers, circular sutures slightly depressed; wall with imperforate microgranular epidermis, interior more coarsely agglutinated, including both quartz and calcareous particles and shell fragments, resulting in a very rough and irregular chamber interior, but without subepidermal network or radial partitions; aperture multiple, a series of irregularly spaced pores, piercing the septa as seen in equatorial section. L. Cretaceous (Infravalangian); France. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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