Pseudomelania paucispira Kaim, 2004
Sugerowana cytacja: Gryz, P. 2020. Pseudomelania paucispira Kaim 2004. Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Pseudomelania+paucispira)
Diagnoza Protoconch paucispiral. Demarcation of teleoconch clearly visible, prosocline. Shell glossy, tower-like, not ornamented apart from growth lines. Suture very weakly incised, whorls almost flat. Inner lip straight, with umbilical chink. Porównanie Similar to Pseudomelania laevigata (Morris & Lycett, 1850) but differs from it by having an umbilical chink. The protoconch of the latter species is unknown and comparison with that of P. paucispira is therefore impossible. Autekologia Występowanie geograficzne Only in type locality. Zasięg czasowy Sample L1, Tirnovella pertransiens Zone, Early Valanginian (Early Cretaceous). Materiały muzealne ZPAL: 182 shells. Literatura Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183. |
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