Hermann Jaeger (geologist)

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Hermann Jaeger (born February 22, 1929 in Freienthal , Zauch-Belzig district ; † September 22, 1992 in Berlin ) was a German paleontologist and geologist . He was director of the Paleontological-Geological Institute of the Humboldt University in Berlin and the Museum of Natural History in Berlin.

life and work

Jaeger grew up in Freienthal (today's Potsdam-Mittelmark district) and studied geology and palaeontology with Hans Stille , Serge von Bubnoff , Walther Gothan , Walter Robert Gross and Fritz Deubel from 1949 and initially worked free of charge in the palaeontological collections and only from 1956 as a paid one Assistant. His diploma thesis presented in 1955, which began with the mapping of the Devonian and Silurian by Graefenwarth , brought new insights into the stratigraphy of the Silurian and Devonian in Thuringia including the non-existence of a Caledonian gap . He received his doctorate in 1958 from the Humboldt University in Berlin under Walter Gross ( graptolites and stratigraphy of the youngest Thuringian Silurian ). At the Natural History Museum, he succeeded WO Dietrich as curator.

He was a member of the International Committee for Determining the Silurian / Devonian Border. Since his diploma thesis he has dealt in particular with graptolites as key fossils , which he studied particularly in Thuringia , but also in Bohemia , the Frankenberg intermediate mountains (Saxony) and the Eastern Alps . He also worked a lot with Helmut W. Flügel in Graz, with whom he also studied the graptolite stratigraphy of the Silurian and Devonian in the Carnic Alps from 1965 to 1982 . He also worked on graptolite finds (and related stratigraphic questions) from Morocco , Tunisia , Libya , Sardinia , Thailand , Burma , Spain ( Seville ) and the eastern edge of the Rhenish Slate Mountains and collected himself on excursions around the world.

In the Carnic Alps (Bischofalm profile) he also found the example of a " living fossil " from the Lower Devonian (relic of the graphtolite fauna of the Ordovician) in the graptolite Climograptus.

In 1988 Jaeger was elected a member of the Leopoldina ; In 1992 he received the Hans Stille Medal . 1960 to 1972 he was in the committee of the Silurian-Devonian border and then in the IUGS sub-committee Silurian stratigraphy.

He had been married since 1956 and had three children.

Fonts

  • Graptolites and stratigraphy of the youngest Thuringian Silurian, Abh. Akad. Wiss. Berlin, class chemistry, geology, biology, 1959, pp. 1–197 (dissertation)
  • Development traits (trends) in the evolution of the graptolites, Geolog. Knowledge Berlin, Volume 10, 1978, pp. 5-58
  • Late Graptoloid Faunas and the problem of graptoloid extinction, Acta Paelaeontologia Polonica, Vol 23, 1978, pp 497-521

literature

  • Obituary by Jochen Helms, Paläontologische Zeitschrift, Volume 69, 1995, pp. 303-312

Web links

Individual evidence

  1. ↑ Anders Martinsson (Ed.) The silurian-devonian boundary: final report , International Union of Geological Sciences (IUGS). Committee on the Silurian-Devonian Boundary, Project Ecostratigraphy, 1977
personal data
SURNAME Jaeger, Hermann
BRIEF DESCRIPTION German geologist
DATE OF BIRTH February 22, 1929
PLACE OF BIRTH Freienthal , Zauch-Belzig district
DATE OF DEATH September 22, 1992
Place of death Berlin