- Category : 1884-births
- Type : ME
- Profile : 3/5 - Martyr / Heretic
- Definition : Single
- Incarnation Cross : RAX Eden 2
German paleontologist and geologist mainly concerned with corals, but also with foraminifera from Java and stratigraphy with foraminifera, Permian sponges from Timor, Indonesian hydrozoes, echinoderms and ammonites. He worked on fossils gathered on Timor by Johannes Wanner and Gustaaf Adolf Frederik Molengraaff. As a geologist, he dealt with the tectonics of the Swiss Jura (continued by Steinmann), the South American Cordillera and the geology of Java. Borntraeger's triple geology appeared in South America. For example, from Perm's corals, he drew conclusions about the climate and permic icing.
He died on 2 August 1971, aged 87, in Bonn.