Chrysallida minuera (Gründel, 1998)
Sugerowana cytacja: Gryz, P. 2020. Chrysallida minuera (Gründel, 1998) . Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Chrysallida+minuera)
Diagnoza Protoconch hyperstrophic, coaxial. Demarcation from teleoconch clearly visible, orthocline. Teleoconch slender, ornamented with sigmoidal, axial ribs (usually 28–30 ribs per whorl) and, on early whorls, blunt spiral ribs. Porównanie Very similar to Recent C. sarsi Nordsieck, 1972 which differs by broader axial ribs and the presence of weak spiral ribs on all whorls of the teleoconch. Autekologia Występowanie geograficzne Faustianka (Częstochowa region) and Kłęby borehole 1/37 (West Pomerania), Poland. Zasięg czasowy Bathonian (Mid Jurassic). Materiały muzealne Two shells from Bathonian (Mid Jurassic) of Faustianka (Częstochowa region) and material from Kłęby borehole 1/37 (West Pomerania), Poland. Literatura Gründel, J. 1998. Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. II. Weitere Allogastropoda. Freiberger Forschungshefte C 474, 1–37. Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183. |
|
