Fritz J. Kruger

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Fritz J. Kruger

Fritz J. Krüger (born December 28, 1941 in Stettin ) is a German amateur paleontologist .

Life

Kruger was a full-time soldier. Among other things, he collects echinoderms from the North German chalk and flint (among other things, he published about the red flint from Heligoland). Krüger published a geological guide through the Mesozoic of the Hanover - Braunschweig area (with additional excursions to Hemmoor and Helgoland ) and published extensively on the fossil site of the Willershausen clay pit (Upper Pliocene).

From the mid-1990s until the appointment of a full-time palaeontologist in 2010, the paleontological collection of the State Natural History Museum in Braunschweig was scientifically and conservationally built up and looked after by him. At the end of the 1990s he took over the management of the fossil working group of the Society for Natural History. V. He led it successfully for almost ten years (inter alia research project Baddeckestedt, Krüger 2006).

He compiled the first summary of all fossils found in the Santon von Lengede , including the discovery of the limpet Amathina inversa . Krüger drafted the cooperation agreement between the State Natural History Museum in Braunschweig and the community of Lengede, as the basis for the ownership structure and premises of the permanent fossil exhibition in Lengede town hall. In addition, he published the book Fossils from Lengede (Krüger 2005). The exhibition is constantly updated and expanded.

In May 2005 the skeleton of an ichthyosaur was found in Cremlingen near Braunschweig as part of the construction of the motorway . It is thanks to the head of the Fossil Working Group Fritz J. Krüger and a team of members that the valuable find was quickly salvaged. In the same year it was prepared and presented to the public in a special exhibition. In 2012 the Ichthyosaurus was named Acamptonectes densus by V. Fischer et al. described.

At the first German dinosaur excavation in Africa since the First World War, as one of the excavation managers, he was significantly involved in the discovery, excavation and preparation of the new dinosaur species Spinophorosaurus nigerensis , which was recovered in 2007 in Niger (Africa).

In 2015 he was curator of the exhibition "Zeitkapsel Bernstein" in the Natural History Museum in Braunschweig, together with Carsten Gröhn and Dr. Max J. Kobbert, from October 2, 2015 to May 22, 2016. The exhibition was then shown in the East Prussian State Museum in Lüneburg until May 2017. A book accompanying the exhibition has been published. At the end of his work, Krüger produced the animated films "Lengede 86 million years ago" and "Lengede in the Ice Age" for the permanent exhibition in collaboration with Germund Mielke. After his 75th birthday, Krüger retired into private life.

Krüger discovered a total of eight new fossil animal species, two of which were named in his honor:

  • The short- antennae insect Locustopsis kruegeri . Zessin 1983
  • The thigh ring spider Eotrochanteria kruegeri . Wunderlich 2004

He described the other finds himself and together with experts:

  • Opaliopsis engelhardti . Kruger 2002
  • Amathina inversa . Kiel & Krüger 2006
  • The new lime sponge genus Hoeverites with three species: Hoeverites roeberi Krautter & Krüger 2008, Hoeverites schormanni and Hoeverites ernsti . Krautter & Krüger 2008
  • Acamptonectes densus , Valentin Fischer et al.

Fonts (selection)

Krüger published a total of around 166 scientific and popular scientific publications (as of 2016) on geology and palaeontology in magazines, specialist journals and books. He described u. a. on sea ​​urchin flintstone cores the anomalies forma aegra inconstans (1993), forma aegra disparradiata (2002) and forma aegra insecta (2006) as well as anomalous sea urchins, which with three and seven ambulacras deviate from the five-pointed symmetry of these echinoderms .

  • Clay pit Willershausen, a geological natural monument . In: Exposure . Volume 30, 1979, pp. 389-408
  • Investigations into the red shotgun from Heligoland and an interpretation of possible causes of coloration . Meyniana 32, Kiel 1980, pp. 105-112
  • Geology and palaeontology: Lower Saxony between Harz and Heide. A guide to the cosmos . Franckh, Stuttgart 1983, 244 p. And Gondrom 1993 and 1999
  • Opaliopsis engelhardti (Caenogastropoda, Nystiellidae) from an Upper Cretaceous boulder (Turonium) near Potsdam (Brandenburg) . In: Geschiebekunde aktuell 18 (4). Hamburg 2002, pp. 135-139
  • with J. Hevers: The paleontological collection. New beginning in the State Natural History Museum . In: S. Ahrens: 250 years of the Natural History Museum in Braunschweig . Braunschweig: Staatliches Naturhistorisches Museum, 2004, pp. 293–314
  • Exposure and recovery of a “Platypterygius” skeleton (ichthyosaur) from the Lower Cretaceous near Braunschweig . In: Working Group Palaeontology Hanover . 33, 3, Hannover 2005, pp. 65-74
  • Lengede fossils . Geology-Mining-Paleontology. Book accompanying the exhibition in Lengede town hall. State Natural History Museum, Braunschweig 2005
  • Fritz J. Krüger et al. (Ed.): State Natural History Museum Braunschweig and FEMO Open-Air and Adventure Museum Ostfalen: Braunschweiger Land . Wanderings in the history of the earth, Volume 19, Pfeil Verlag, Munich 2006

In the series Classical Sites of Paleontology he wrote the chapters:

  • The Willershausen clay pit, the Hemmoor chalk pit and the Doberg near Bünde . In: Werner K. Weidert: Classical sites of paleontology . Volume 1, 1988, Goldschneck Verlag
  • The Cenomaniac from Wunstorf . In: Werner K. Weidert: Classical sites of paleontology . Volume 3, 1995, Goldschneck Verlag
  • The Höver campan . In: Werner K. Weidert: Classical sites of paleontology . Volume 4, 2001, Goldschneck Verlag

Individual evidence

  1. ↑ Short biography in Werner K. Weidert: Classical Findings of Paleontology , Volume 1, Goldschneck Verlag 1988
  2. ↑ cosmos . Volume 72, Kosmos Gesellschaft der Naturfreunde, Stuttgart 1976. P. 136
  3. ^ Sabine Ahrens: 250 years of the Natural History Museum in Braunschweig . State Natural History Museum, Braunschweig 2004
  4. ↑ U. Jansen, FF Steininger: The paleontological collections in Germany - contents, recording and endangerment . Kleine Senckenberg series No. 42, 2002
  5. ^ A b V. Fischer, MW Maisch, D. Naish, R. Kosma, J. Liston, U. Joger, FJ Krüger, JP Pérez, J. Tainsh, RM Appleby: New ophthalmosaurid ichthyosaurs from the European Lower Cretaceous demonstrate extensive ichthyosaur survival across the Jurassic-Cretaceous boundary. In: PloS one. Volume 7, number 1, 2012, p. E29234, doi : 10.1371 / journal.pone.0029234 , PMID 22235274 , PMC 3250416 (free full text).
  6. ^ Ulrich Joger , Ralf Kosma, Fritz J. Krüger: Project Dino. The story of the discovery of new dinosaurs in Niger, Africa. Cargo-Verlag, Schwülper 2009
  7. ↑ Carsten Gröhn, Melanie Horne man, Ulrich Joger, André Koch, Ralf Kosma, Fritz J. Kruger, Bernd-Wolfgang Vahldiek, Volker Wilde and Henning Zellmer (2015): Time Capsule Bernstein. Living beings from past worlds - Verlag Dr. Friedrich Pfeil, Munich.
  8. ↑ W. Zessin: Locustopsis kruegeri n. Sp. (Orthopteroidea, Caelifera) from the upper Lias of Schandelah near Braunschweig (FRG) . Magazine Geol. Wiss. Berlin 11 (1983) 7, pp.
  9. ↑ Jörg Wunderlich: Fossil spiders in amber and copal . Volumes 1 and 2, J. Wunderlich-Verlag, Hirschberg-Leutershausen 2004
  10. ^ S. Kiel, FJ Krüger: Gastropods from the central Canton (Upper Cretaceous) of Lengede (Lower Saxony) . Braunschweiger Naturkundliche Schriften, 7 (3): 677–696, 2006
  11. ↑ M. Krautter, FJ Krüger: New Kalkschwämme (Calcarea) from the Lower Campanium (Upper Cretaceous) from Höver (Lower Saxony, Germany) . Braunschweiger Naturkundliche Schriften 8 (1): 261–272, Corrigenda 8 (2): 495–496, Braunschweig 2008
  12. ^ FJ Krüger: Plate anomalies in Echinocorys sulcata (Goldfuss 1826) from the Dan (Old Tertiary) of Dalbyober, Denmark . Paläontologische Zeitschrift 67, ¾: 305–321, Stuttgart 1993
  13. ^ FJ Krüger: x-times Feuerstein: Second find of a gallery with seven ambulakra . - The bed load collector, 34.4: 173-181, Wankendorf 2002
  14. ↑ FJ Krüger: Ambulacral anomalies in fossil and recent Echinoidea (Echinodermata) . Der Aufschluss 57, 1: 59–64, Heidelberg 2006
personal data
SURNAME Kruger, Fritz J.
BRIEF DESCRIPTION German amateur paleontologist
DATE OF BIRTH December 28, 1941
PLACE OF BIRTH Szczecin