Grimm k i (27 Ergebnisse)

The wall structure of some foraminifers from the Rupeliam of the Mainz Basin, formerly referred to Spiroplectammina Cushman 1927, is examined. They are classified as Spiroplectinella Kisel'man 1972 because of the occurrence of pseudopores. The genus neither belong to the Spiroplectamminacea nor to the Textulariacea. The proposit…

The tintinnid Pseudarcella rhumbleri Spandel, 1909 from the Rupelian (Oligocene) of the Mainz Basin, is redescribed based on a neotype. Even though Tappan & Loeblich showed as early as 1968 that Pseudarcella is a tintinnid, more recent works of the Mainz Basin have still refered to it as being a foraminifera. 5 pp., 1 fig., gr.…

Hollow approx. 200 µm diameter spheres have been frequently found in the Rupelian "Fischschiefer" of the Mainz Baisin. Spandel (1909) first described them as Orbulina bituminosa and interpreted them as foraminifera. The prefered interpretation of the spheres is that they are Crustacean eggs because of similarities both in terms…

Close spaced sampling of 5 clay quarries in the Rupel area of Belgium and of 8 outcrop and 40 borehole sections in the Mainz Basin has led to an almost continuous foraminiferal record throughout the Middle Rupelian of the southern North Sea Basin. The distribution of foraminifera in the Boom Clay Formation is rather complex and…

Studies on the foraminiferal fauna of five Rupelial sections in the Bavarian molasse and in the Inntaltertiär and also on material housed in the collection of the Bavarian Staatssammlung were made. The foraminiferal fauna was compared to those of the Mainz Basin and Upper Rhine Graben. Apart from the occurence of endemic and cos…

Sonne, V.: Karlheinz Rothausen zum 70. Geburtstag. Grimm, K.I.: Schriften von Karlheinz Rothausen. Farsan, N.M.: Das Etroeungtium (Ober-Devon VI, Strunium) und die letzten Phacopinae (Trilobita) im westlichen Zentral- und West-Afghanistan. Grimm, M.C.: Orthocone Cephalopoden als sekundäre Hartgrundsubstrate in Black Shales des O…