Catalog - Guembelina crinita Catalog - Guembelina crinita

CATALOG OF ORIGINAL DESCRIPTIONS: Guembelina crinita Glaessner 1937

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 -> G -> Guembelina -> Guembelina crinita
Other pages this level: G. abnorma, G. acervulinoides, G. barnardi, G. boliviniformis, G. carinata, G. cenomana, G. cenomanica, G. complanata, G. conjakica, G. costulata, G. crinita, G. cubensis, G. cubensis heterostoma, G. dagmarae, G. deflaensis, G. distorta, G. excolata, G. fructicosa, G. garretti, G. glabrans, G. globocarinata, G. globulosa dibrarica, G. globulosa striatula, G. goodwini, G. malocaucasica, G. marshallana> >>

Guembelina crinita

Citation: Guembelina crinita Glaessner 1937
taxonomic rank: Species
Type locality: Paleocene, beds from Gorjatschij Kljutsch
Type repository: Moscow, Russia; Collections of the Institute for Fuel-Research of the Academy of the Sciences of the USSR, Moscow

Current identification/main database link: Chiloguembelina crinita (Glaessner 1937)

Original Description

Translation from the German --"Test small, built up with about 10-15 spherical or oval-shaped, distinct, separated chambers. The spire of the initial chambers in existing specimens is not distinctly recognizable. The ratio of chamber width to the length varies strongly. The largest diameter of the last chamber is offset from the biserial plane. Consequently, the last chamber diagonally overlies the previous one, the median suture on both sides are not opposite each other and the test appears thereby somewhat distorted. The aperture opens not in the usual case towards the edge of the test, but in a direction which lies between the edge and the side of the test. In extreme cases, it is directed even along the suture of the last chamber in side view. The aperture is moderate in width, but high, half rounded and enclosed along the margin. The test surface in many specimens is covered by fine granulations, which are always found on the upper surface of the last chambers as fine, but in spite of their minuteness specially on the periphery, distinctly visible sharp tiny protuberances."

length 0.17-0.22 mm.; width 0.10-0.15 mm.; thickness 0.05-0.1 mm



Guembelina crinita compiled by the pforams@mikrotax project team viewed: 22-2-2024

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