Catalog - Hedbergella praetrocoidea Catalog - Hedbergella praetrocoidea

CATALOG OF ORIGINAL DESCRIPTIONS: Hedbergella praetrocoidea Kretzchmar&Gorbachik, in Gorbachik 1986

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> H -> Hedbergella -> Hedbergella praetrocoidea
Other pages this level: << < H. hispaniae, H. holmdelensis, H. implicata, H. intermedia, H. kuhryi, H. kyphoma, H. labocaensis, H. lata, H. libyca, H. luterbacheri, H. maslakovae, H. murphyi, H. occulta, H. praelibyca, H. praelippa, H. praetrocoidea, H. pseudoplanispiralis, H. pseudotrocoidea, H. punctata, H. pustulosa, H. quadrata, H. ranzenbergensis, H. rischi, H. semielongata, H. sigali, H. similis, H. sliteri, H. telatynensis, H. trocoidea yezoana, H. velata, H. ventriosa> >>

Hedbergella praetrocoidea

Citation: Hedbergella praetrocoidea Kretzchmar&Gorbachik, in Gorbachik 1986
taxonomic rank: Species
Type specimens: GP-41
Type age (chronostrat): Aptian
Type locality: Village of Verkhorechye, along the Kacha River, southwestern Crimea, Ukraine.
Type repository: Moscow, Russia;

Current identification/main database link: Hedbergella praetrocoidea Kretchmar and Gorbachik, in Gorbachik, 1986


Original Description

Test small, high spired. Both right- and left-coiling specimens occur. Height of coil variable. Spiral side usually convex, more rarely flat. Umbilical side concave. Contour of test lightly oval, lobate. Peripheral margin broad, rounded. Adult tests consist of 2.5-3 whorls. Total number of chambers 14-19, specimens with 17 chambers predominate. First whorl has 5-5.5 chambers, later whorls 6-7. Number of chambers per whorl increases each whorl by a half to one chamber. First 4-6 chambers spherical. Later chambers are trapezoidal on the spiral side, last 2-4 chambers are kidney-bean-shaped.

References:

Gorbachik, T. N. (1986). Jurassic and early Cretaceous planktonic foraminifera of the south of the USSR. Moscow: Izdat. “Nauka”. 1986: 120-. gs


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Hedbergella praetrocoidea compiled by the pforams@mikrotax project team viewed: 14-6-2024

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