...............At the end of the eighteenth century the town of Sibiu was the residence of the Transylvanian governor and one of the important centers of researches in natural sciences. The baron Samuel Bruckenthal mostly known as arts lover had the biggest contribution in supportig this kind of researches. He had also a big contribution in nature science knowledge by collecting rocks, mineral and fossils from.all the territory of Transylvania.

..............J.L. Neugeboren was the curator of the Samuel Bruckenthal baron's collections. First he was preoccupied by the mineral collection which he classified by using the most modern criteria of that period. Since 1840 he was attracted more and more to the fossils. He made numerous trips to Porcesti (the old name of Turnu Rosu) from where collected a big amount of eocene fossils for the baron. The fossil sharks fauna offered him a good material to write the first monography about sharks the first one ever written in Romania: "Die vorweltichen Squalidenzahne aus dem Grobkalke bei Porsesd am Altflus unveit Talmats". He was supported in doing this paper by Franz Ritter Hauer the director of the Imperial Museum of Viena. In order to write his monography Neugeoboren used not only his collection but also those of M.J. Akner and E. A. Bielz. He described 24 species new for science. His paper work is impressive through the accuracy of the descriptions and through the author's knowledge which was at the highest level of that time.

...........In the next years he moved his attention to other groups of fossils: foraminiferae and miocene (tortonian) moluscs. This research made him collaborate with important scientists from Europe like Fr. Karrer, A. D'Orbigny and E. A. Reuss. Like a recognition of his activity Neugeboren became a corespondent member of the Geological Imperial Institute from Viena in 1 January 1885 and two years later in 2 january 1857 he was made a member of honour of The Royal Belgian Academy.

...........His collection was bought in 1910 by Natural Science Museum of Sibiu, but because numerous movements and to the First World War evacuation part of it was lost for ever.

............In 1887 Neugeboren dies at Sibiu.

List with a part of his paper works:

1846. Ausflug Portsesd in Transsylvania, Transilvania, Beiblatt zum Siebenburger Boten, ..........48, Sibiu.

1846. Entdekung von Foraminiferen des Tegels von Felso - Lapugy, Transsilvania, ...........Beiblatt den Siebenburger Boten, 26, Brasov.

1847. Uber die foraminiferen des von Ober - Lapugy, Haidinger Berichte, II, III.

1847. Ubersicht der bei Portsesd aufgefunden fossilen Fischzane, Haidinger Berichte,III.

1847. Uber die Foraminiferen des Tegels von Feldo - lapugy, Berichte uber Mitt. ...........Freund. der naturwiss., 2, Viena.

1850. Foraminiferen von Ribicze, Haidinger Berichte, IV.

1848. Ubersicht der bis jetzt dei dem Dorf Portsesd am Altflussse unweit Talmats, ...........aufgefundenen en vorweltlichen Fischzane, Berichte uber Mitt. Freund. der.............. ...........Naturwiss., 3, Viena.

1850, 1851. Die vorweltlichen Squalidenzahne aus dem grobkalke bei Portsesd am Altflus. ...........unveit Talmats, Archiv, 4(2), 493), Sibiu.

1851. Literarische Notiz uber Jakob Heckels Beitrag zur Kenntniss der fossilien Fische...... ...........Osterreichs, Denkschriften der k.k. Akademie der Wiessenshaften in Wien, II, Viena.