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Foraminifera taxon detailsHeterocoskinolina Saint-Marc, 1978 †
 739360 (urn:lsid:marinespecies.org:taxname:739360)
accepted
Genus
Heterocoskinolina ruskei Saint-Marc, 1978 † (type by original designation)
marine,
fossil only
feminine
Saint-Marc, P., 1978, Heterocoskinolina ruskei n. gen. n. sp., Orbitolinidé nouveau du Cénomanien du Proche-Orient remarques sur Ia sous-famille des Dictyoconinae, Archives des Sciences, Genève 31:51-56.
page(s): p. 52 [details]
Diagnosis Test conical, eccentric megalospheric embryonal apparatus of simple protoconch and deuteroconch, followed by a larger...
Diagnosis Test conical, eccentric megalospheric embryonal apparatus of simple protoconch and deuteroconch, followed by a larger trochospiral nepionic stage, and finally by a rectilinear stage of numerous low discoidal chambers; well-developed marginal zone subdivided by vertical radial exoskeletal beams and intercalated second order beams but lacks horizontal chamber subdivisions, primary beams extend from chamber floor to roof in the marginal area but thicken and become lower and undulating toward the axial region until they no longer reach the chamber roof, leaving the central zone undivided near the roof but partially divided near the chamber floor by the low prolongations of a few radial beams, axial endoskeletal pillars lacking; aperture consists of circular pores in the central region, opening between the beams. U. Cretaceous (M. Cenomanian); Syria. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Heterocoskinolina Saint-Marc, 1978 †. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=739360 on 2025-05-22
Date action by
original description
Saint-Marc, P., 1978, Heterocoskinolina ruskei n. gen. n. sp., Orbitolinidé nouveau du Cénomanien du Proche-Orient remarques sur Ia sous-famille des Dictyoconinae, Archives des Sciences, Genève 31:51-56.
page(s): p. 52 [details] From editor or global species database
Diagnosis Test conical, eccentric megalospheric embryonal apparatus of simple protoconch and deuteroconch, followed by a larger trochospiral nepionic stage, and finally by a rectilinear stage of numerous low discoidal chambers; well-developed marginal zone subdivided by vertical radial exoskeletal beams and intercalated second order beams but lacks horizontal chamber subdivisions, primary beams extend from chamber floor to roof in the marginal area but thicken and become lower and undulating toward the axial region until they no longer reach the chamber roof, leaving the central zone undivided near the roof but partially divided near the chamber floor by the low prolongations of a few radial beams, axial endoskeletal pillars lacking; aperture consists of circular pores in the central region, opening between the beams. U. Cretaceous (M. Cenomanian); Syria. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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