CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina cretacea var. eggeri Heron-Allen & Earland 1922
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.
Citation: Globigerina cretacea var. eggeri Heron-Allen & Earland 1922Rank: varietyType specimens: pl. VII figs 6-8Type sample (& lithostrat): DredgingType age (chronostrat): RecentType locality: Terra nova station 6 , 7 miles east of Norh Cape, 70 New Zealand area.
Original Description A single delicate specimen, 0.22 mm. in diameter, exhibiting seven chambers on the inferior side, and two complete whorls of chambers on the upper or rotaline surface. It is clearly allied to the G. cretacea group, but does not agree with either the tvpe or the species sub-cretacea instituted by Chapman for the recent forms of G. cretacea figured by Brady (C. 1901 FFA, p410, pl xxxvi, fig. 16). On the other hand the N.Z. specimen does very closely resemble a little form which has been figured by several authors under the name G. aequilateralis, Brady, disregarding the fact that G. aequilateralis should, as its name suggests, be aequilateral, presenting a similar appearance on both faces. Size: 0.22 mm. in diameter Etymology: We have associated our variety with the name of Egger, who is responsible for the original misapplication of the name G. aequilateralis. Extra details from original publication
Globigerina aequilateralis Egger, 1899, KOA. p. 169, pl. xxi. figs. 11, 21-23;
Globigerina aequilateralis Egger 1910, FKR. p. 36. pl. iv. figs. 17 19.
These small, compressed rotaline Globigerinae are very rare, but we have observed them before in several tropica! and sub-tropical gatherings.
References:
Egger, J. G. (1899). Foraminiferen und Ostrakoden aus den Kreidemergeln der Oberbayerischen Alpen. Abhandlungen der königlichen bayerischen Akademie Wissenschaften zu München. 21(1): +169-+. gs
Egger, J. G. (1910). Ostrakoden und Foraminiferen des Eybrunner Kreidemergels in der Umgegend von Regensburg. Bericht naturwiss. Ver. Regensurg. 12: +36-+. gs
Heron-Allen, E. & Earland, A. (1922). Protozoa, Part II,Foraminifera. Natural History Report, British Antarctic Terra Nova Expedition, Zoology. 6(2): 25-268. gsVO
Globigerina cretacea eggeri compiled by the pforams@mikrotax project teamviewed: 22-3-2023
Heron-Allen & Earland 1922 pl7 f6-8.JPG
Heron-Allen & Earland 1922 pl7 f6-8.JPG
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