Carinathilda squiresi Kaim, 2004
Sugerowana cytacja: Gryz, P. 2020. Carinathilda squiresi Kaim 2004. Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Carinathilda+squiresi)
Diagnoza Shell broadly cone-shaped, 1.47 times as high as broad. Protoconch almost coaxial, smooth. Teleoconch starting with two prominent and one subsutural spiral rib. Abapical rib becomin keel on first teleoconch whorl. Spiral ribs crossed by weakly prosocline axial ribs (53–54 ribs per whorl). Surface of teleoconch covered by spiral microornamentation. Porównanie Differs from the most similar C. microstriata by its larger and non-ornamented protoconch and abapically situated keel. The latter is situated medially at C. microstriata. Autekologia Występowanie geograficzne Only in type locality. Zasięg czasowy Sample N1, Busnardoides campylotoxus Zone, Early Valanginian (Early Cretaceous). Materiały muzealne 30 shells. Literatura Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183. |
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