TY  - JOUR
A1  - Schäfer, Peter
T1  - Nonionoides n. gen. demens (Bık, 1964), eine bisher verkannte Foraminiferenart aus dem Aquitan des Mainzer Beckens
Y1  - 1980
VL  - 8
SP  - 193
EP  - 200
JF  - Mainzer geowissenschaftliche Mitteilungen
N2  - Investigations on the systematic position of the foraminifer generally refered to as Hastigerina demens known from the Aquitanian of the Mayence basin have shown, that a new classification has to be made. Based on the shown protoforamina the species has to be considered as belonging to the family Polystomellidae EIMER & FICKERT, 1899. The aberrant test of the species which above all appears in the evolute arrangement of the chambers, has induced the author to place the species in a new genus Nonionoides n. gen. For N. demens a benthonic way of life has to be assumed. Therefore no autochthon planctonic living foraminifers are known from the Hydrobia beds and Corbicula beds of the Mainz basin.
UR  - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10022
ER  -