Rezente planktonische Formainiferen und ihre Bedeutung für die Rekonstrunktion der ehemaligen Umwelt
Planktonic foraminifera first appeared in the Early Jurassic, approx. 200 million years ago. They occurred in great abundance in the oceans only after an important marker Ievel of 130 million years (Early Cretaceous). Since that time, planktonic foraminifera are the most important first ranking Stra...
| Main Author: | |
|---|---|
| Format: | Article in Journal/Newspaper |
| Language: | German |
| Published: |
Springer
1991
|
| Subjects: | |
| Online Access: | https://oceanrep.geomar.de/id/eprint/34173/ https://oceanrep.geomar.de/id/eprint/34173/1/Hemleben%281%29.pdf |
| Summary: | Planktonic foraminifera first appeared in the Early Jurassic, approx. 200 million years ago. They occurred in great abundance in the oceans only after an important marker Ievel of 130 million years (Early Cretaceous). Since that time, planktonic foraminifera are the most important first ranking Stratigraphie markers and indicators forachanging world's ocean. Knowledge of the ecological demands of living planktonic foraminifera help one to understand their environment in the past because of their high sensitivity to environmental changes; thus, they can be used to reconstruct the oceanic paleoclimate by means of their morphology, faunal assemblage and chemical composition. |
|---|