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Gewählte Publikation:

Keutgen, N; Keutgen, AJ.
(2020): Belemnites of the Neobelemnella kazimiroviensis group - a comparison of the self-organizing Kohonen networks algorithm with the classic palaeopopulation statistical approach and approaching their origin
NEUES JAHRB GEOL P-A. 2020; 295(1): 23-51. FullText FullText_BOKU

Abstract:
Belemnites of the Neobelemnella kazimiroviensis group were classified applying the Artificial Neural Networks method, the self-organizing Kohonen algorithm. Four species are distinguished, Neobelemnella kazimiroviensis (SKoLozDRowNA, 1932), Neobelemnella pensaensis (NAIDIN, 1952), Neobelemnella skolozdrownae (KoNGIEf, 1962), and Neobelemnella aff. kazimiroviensis (SKoLozDRowNA, 1932). The first two species occur in the Upper Maastrichtian of Central Asia (Kazakhstan, Turkmenistan), Russia, Poland, Denmark, the Netherlands and Belgium. N. skolozdrownae is limited to Poland, Denmark, the Netherlands and Belgium, while N. aff. kazimiroviensis occurs in the Volga Basin (Russia) and Kazakhstan. The evolution of the N. kazimiroviensis group from a member of the Belemnella praearkhangelskii group of Central Russia or Kazakhstan or from the Belemnitella americana group from New Jersey (USA) is discussed applying Hierarchical Cluster Analysis and Multidimensional Comparative Analysis. A member of the Bt. americana group - ?Neobelemnella subfusiformis (WHITFIELD, 1892) - is referred to the genus Neobelemnella NAIDIN, 1975 albeit with a query. This supports the hypothesis that the N. kazimiroviensis group could have evolved from a North American precursor.
Autor*innen der BOKU Wien:
Keutgen Anna
Keutgen Norbert
BOKU Gendermonitor:


Find related publications in this database (Keywords)
N. kazimiroviensis
N. pensaensis
N. skolozdrownae
?N. subfusifonnis
statistics
palaeobiogeography


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