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The phymosomatid echinoid Trochalosoma taeniatum from the Maastrichtian (Upper Cretaceous) of southeast Poland
Jagt, J.W.M.; Kin, A. (2010). The phymosomatid echinoid Trochalosoma taeniatum from the Maastrichtian (Upper Cretaceous) of southeast Poland. Acta Geol. Pol. 60(3): 429-435
In: Acta Geologica Polonica. Muzeum Ziemi: Warszawa. ISSN 0001-5709, more
Peer reviewed article  

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Keywords
Author keywords
    Echinoidea; Phymosomatidae; Trochalosoma; Maastrichtian; Lublin area;Poland

Authors  Top 
  • Jagt, J.W.M.
  • Kin, A.

Abstract
    The phymosomatid Trochalosoma taeniatum (von Hagenow, 1840) is recorded for the first time from upper Maastrichtian strata exposed at Piotrowice, near Lublin, southeast Poland. Although fragmentary, the single, moderately preserved test is of note in representing one of the larger individuals of this species on record (estimated diameter > 60 mm), and in displaying crenulate ambulacral and interambulacral tubercles, at least adapically. Previous records of T. taeniatum include the lower and upper Maastrichtian of Denmark, northern Germany (Rugen), Alava (northern Spain) and Mangyshlak (Kazakhstan). Trochalosoma cornet (Cotteau, 1875), from the upper Maastrichtian of southern and northeast Belgium (Mons and Liege basins, respectively) and the southeast Netherlands (type area of the Maastrichtian Stage), synonymised by some authors with T. taeniatum, is considered to be distinct.

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