Foraminifera taxon details

Calveziconus pygmaeus Schlagintweit, Cvetko Tešović, Martinuš & Vlahović, 2023 †

1672906  (urn:lsid:marinespecies.org:taxname:1672906)

accepted
Species
marine, brackish, fresh, terrestrial
fossil only
Schlagintweit, F., Cvetko Tešović, B., Martinuš, M., Vlahović, I. (2023). New larger benthic foraminifera from Brač Island, Croatia: further evidence for early–middle Campanian foraminiferan high diversity in the inner platform facies of the Adriatic Carbonate Platform. <em>Cretaceous Research, 151.</em> , available online at https://doi.org/10.1016/j.cretres.2023.105667 [details] Available for editors  PDF available [request]
Description Test small (diameter: 0.35-0.66 mm; height: 0.32-0.62 mm), medium conical (apical angle 40-55 degrees), and with convex...  
Description Test small (diameter: 0.35-0.66 mm; height: 0.32-0.62 mm), medium conical (apical angle 40-55 degrees), and with convex base. Embryo, simple, biloculine (smaller protoconch + wider deuteroconch) and in an apical position (diameter 0.07-0.12 mm, mean around 0.10 mm). Given that the biloculine structure of the embryo is not always discernible this data refers to the greatest diameter of the embryonic chamber. The axis of the embryo is inclined with respect to the test axis. In the middle part, the embryo is connected to a few semi-lunate, spirally coiled chambers by means of a single pore. These chambers are undivided, separated by short septa and connected by interiomarginal foramina. The main part of the test consists of up to 12 uniserial chambers (often 6 to 8) with convex apertural faces throughout. The exoskeleton consists of one short horizontal partition (rafter), obviously lacking in the earliest chambers, and main vertical partitions (beams) with up to three intercalary beams (one longer in the middle). The main vertical partitions are rather long, alternate in position between subsequent chambers, wide inwards and form a reticulate network in the centre of the test. The chambers are connected by crosswise oblique disposed foramina. Wall finely agglutinated. Microspheric specimens have not been observed in the material studied. [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Calveziconus pygmaeus Schlagintweit, Cvetko Tešovic, Martinuš & Vlahovic, 2023 †. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=1672906 on 2025-11-13
Date
action
by
2023-08-09 12:17:37Z
created

original description Schlagintweit, F., Cvetko Tešović, B., Martinuš, M., Vlahović, I. (2023). New larger benthic foraminifera from Brač Island, Croatia: further evidence for early–middle Campanian foraminiferan high diversity in the inner platform facies of the Adriatic Carbonate Platform. <em>Cretaceous Research, 151.</em> , available online at https://doi.org/10.1016/j.cretres.2023.105667 [details] Available for editors  PDF available [request]
From editor or global species database
Description Test small (diameter: 0.35-0.66 mm; height: 0.32-0.62 mm), medium conical (apical angle 40-55 degrees), and with convex base. Embryo, simple, biloculine (smaller protoconch + wider deuteroconch) and in an apical position (diameter 0.07-0.12 mm, mean around 0.10 mm). Given that the biloculine structure of the embryo is not always discernible this data refers to the greatest diameter of the embryonic chamber. The axis of the embryo is inclined with respect to the test axis. In the middle part, the embryo is connected to a few semi-lunate, spirally coiled chambers by means of a single pore. These chambers are undivided, separated by short septa and connected by interiomarginal foramina. The main part of the test consists of up to 12 uniserial chambers (often 6 to 8) with convex apertural faces throughout. The exoskeleton consists of one short horizontal partition (rafter), obviously lacking in the earliest chambers, and main vertical partitions (beams) with up to three intercalary beams (one longer in the middle). The main vertical partitions are rather long, alternate in position between subsequent chambers, wide inwards and form a reticulate network in the centre of the test. The chambers are connected by crosswise oblique disposed foramina. Wall finely agglutinated. Microspheric specimens have not been observed in the material studied. [details]
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