Bralitzia acuminata
Sugerowana cytacja: Gryz, P. 2020. Bralitzia acuminata (Gründel, 1999) . Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/viewrev/Species/Bralitzia+acuminata)
 Specimen MZ VIII Mg 4237/2 from the Callovian (Mid Jurassic) of Łuków (block in glacial drift) in lateral and apical view. Diagnoza Protoconch 2 cylindrical with dome-shaped apex, smooth. Shell slender with apical part pointed. Teleoconch ornamented with strong opisthocline axial ribs and densely packed spiral lirae. Porównanie May represent an intermediate species between Bralitzia obliquata (Sowerby, 1829) and Bralitzia faustiankensis Kaim, 2004. Shell is more slender than B. faustiankensis; ribs less strong than in B. obliquata. Autekologia Występowanie geograficzne Germany and Poland. Zasięg czasowy Callovian (Mid Jurassic). Materiały muzealne Material from Germany and two shells from Callovian of Łuków (block in glacial drift). Literatura Gründel, J. 1999e. Truncatelloidea (Littorinimorpha, Gastropoda) aus dem Lias und Dogger Deutschlands und Nordpolens. Berliner Geowissenschaftliche Abhandlungen, Reihe E30, 89–119. Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183. |
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