CATALOG OF ORIGINAL DESCRIPTIONS: Igorina Davidzon, 1976

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

Igorina

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]

References:

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


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

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