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Vassil Tzankov

Coordinates: 42°42.803′N 23°20.193′E / 42.713383°N 23.336550°E / 42.713383; 23.336550
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Vassil Tzankov Tzankov
Васил Цанков Цанков
Professor Vassil Tzankov in 1977
Born(1905-04-02)2 April 1905
Gorna Oryahovitsa, Principality of Bulgaria
Died25 August 1986(1986-08-25) (aged 81)
Sofia, People's Republic of Bulgaria
Resting placeCentral Sofia Cemetery
42°42.803′N 23°20.193′E / 42.713383°N 23.336550°E / 42.713383; 23.336550
NationalityBulgarian
CitizenshipBulgaria
Alma materSofia University St. Kliment Ohridski
Known for"Fossils of Bulgaria" (Bulgarian: Фосилите на България)
Scientific career
FieldsPaleontology, Stratigraphy
InstitutionsSofia University
University of Vienna
University of Paris
University of Berlin
Bulgarian Ministry of Trade, Industry and Labour
Bulgarian Academy of Sciences
Doctoral advisorStephan Bonchev
Doctoral studentsStoycho Breskovski
Author abbrev. (zoology)Tzankov

Vassil Tzankov Tzankov (Bulgarian: Васил Цанков Цанков) (April 2, 1905, Gorna Oryahovitsa, Bulgaria – August 25, 1986, Sofia, Bulgaria) was a Bulgarian geologist and paleontologist.[1][2] He is best known for his work on Upper Cretaceous ammonites and bivalves. Tzankov was head of Bulgarian Geological Survey from 1941 until 1944. In 1945 he became docent and in 1947 - professor, and was appointed to the paleontology chair at Sofia University "St. Kliment Ohridski". In the late 1950s Tzankov organized the launch and became the first editor and one of the principal authors of the multi-volume treatise "Fossils of Bulgaria" (Bulgarian: Фосилите на България). Contributors to the treatise included leading Bulgarian specialists in the field. He served as deputy director of the Geological Institute at the Committee for Geology and Mineral Resources in the period 1960-1966. From 1967 to 1982 Tzankov also served as head of the Department of Paleontology with the Geological Institute at the Bulgarian Academy of Sciences. In 1967 he was elected as a corresponding member of the Bulgarian Academy of Sciences.

Early life

Tzankov was raised in Shumen in the family of a veterinary physician, Dr. Tzanko Tzankov (1869-1941). After attending high school in Shumen, he enrolled in Sofia University, taking his A.B. degree in 1928. He took his PhD in 1929, under the supervision of Dr.Stephan Bonchev and became the first student to be awarded a doctorate in natural science in Bulgaria. His dissertation was regional paleontological survey of Shumen plateau, and in particular, stratigraphy and paleontology of the Upper Cretaceous fossils in Northeastern Bulgaria.[3]

Early career

Tzankov commenced work as an assistant professor in geology at Sofia University in 1930.[4] He did postgraduate research in Vienna (1936), Paris (1938–39) and Berlin (1941). In 1939, he was appointed chief of the Geology section at the Ministry of Trade, Industry and Labour. In 1941, he was appointed head of Geology Research within the newly established directorate “Natural Resources”. During that period he introduced micropaleontological research – foraminifera, conodonts, spores and pollen – in Bulgaria. In 1945 he resumed his academic work at Sofia University. In 1947, he was promoted to full professor. He would alternate in his role of director of the Bulgarian Geological Survey for many years, performing double duty as professor for those years.

Fossils of Bulgaria

Beginning in the 1950s, Tzankov drafted a project in which Bulgarian specialists would write on their area of expertise in paleontology as contributions to a multi volume series, which would be published by the Bulgarian Academy of Sciences. Tzankov became editor, and also provided assistance for definition of morphologic terms, as well as other explanations. He supplied the parts to the treatise which concerned his own specialty areas.

Later career

In 1967, Tzankov was elected corresponding member of the Bulgarian Academy of Sciences. In the same year he was also appointed as head of the Department of Paleontology at the Geological Institute of the Bulgarian Academy of Sciences, a position he held until 1982.

Memberships

  • Corresponding Member of the Bulgarian Academy of Sciences.
  • Honorary Member of the Bulgarian Geological Society.
  • Editor – Geologica Balcanica

Legacy and awards

In his later years, Tzankov continued his work on "Fossils of Bulgaria" and on phylogeny of the ammonites Holcodiscidae and Asteridiscidae (together with St. Breskovski).[5] He died in Sofia in 1986. Vassil Tzankov was survived by his wife Kincha, daughter Yana and son Tzanko. He received many awards, including an honorary badge of Sofia University, state order Sts. Cyril and Methodius etc. His collection of fossils is preserved in the Museum of Paleontology and Historical Geology at Sofia University.

Selected bibliography

He is author of more than 100 publications, including 5 textbooks and 3 books.

  • Les Fossiles de Bulgarie, Sofia: Éditions de L’Académie Bulgare des Sciences. Publié sous la rédaction de V. Tzankov

References

  1. ^ International Palaeontological Union (I.P.U.) (1968). Westermann, G.E.G. (ed.). Directory of Palaeontologists of the World (excl. Soviet Union & continental China) (2 ed.). Hamilton, Ontario: McMaster University. p. 118. Retrieved June 30, 2017 – via Internet Archive.
  2. ^ Tchoumatchenco, Platon; Nikolov, Todor (2016). "Compendium of Bulgarian Palaeontologists (1896-December 31, 2015). Part II. Л-Я ". Review of the Bulgarian Geological Society. 77 (2–3): 35–36.
  3. ^ Геология на Шуменското плоскогорие и близките му околности, дисертация представена на Физико-математическия факултет на университета в София за добиване на титлата доктор по естествените науки от Васил Цанков от Горна Оряховица, Списание на Българското геологическо дружество, год. II, кн. I, София, 1930
  4. ^ Deutsche Geologische Gesellschaft (1932). Bayenburg, Edmund (ed.). Internationaler Geologen-und-Mineralogen-Kalendar 1933-1934. Stuttgart: F.Enke. p. 232.
  5. ^ Wright, C. W. with J.H. Callomon and M.K. Howarth (1996). Mollusca 4 Revised, Cretaceous Ammonoidea in Treatise on Invertebrate Paleontology Part L (Roger L. Kaesler et el. eds.). Boulder, Colorado and Lawrence, Kansas: The Geological Society of America & University of Kansas Press. p. 48.
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