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 -> I -> Igorina
Other pages this level: Igorina, Inordinatosphaera,

Daughter taxa: (blue => in age window 0-300Ma)
status uncertain
status uncertain
status uncertain


Citation: Igorina Davidzon, 1976
Rank: Genus
Type species: Acarinina tadjikistanensis Bykova, 1953

Current identification/main database link: Igorina Davidzon, 1976

Original Description
Test free, bilaterally convex. Equatorial outline round, slightly undulate. Axial outline takes the form of a bilateral cone with variable vertex angles. Chambers on sprial side alate, on umbilical side triangular. Umbilicus small or absent. Aperture a slit at the base of the septal surface of the last chamber. Surface of chambers smooth or almost uniformly covered with small spines. [translation from Ellis & Messina Catalog]


Davidzon, R.M., (1976). Novyy paleogenovyy rod planktonnykh foraminifer. Trudy Vsesoyuznogo Nauchno-issledovatel’skogo Geologorazvedochnogo Neftyanogo Instituta (VNIGNI), Tadzhikskoe Otdelenie,, 183: 197-199.


Igorina compiled by the pforams@mikrotax project team viewed: 19-7-2018

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