Kotuitheca curta Missarzhevsky, 1974
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publication ID |
https://doi.org/ 10.4202/app.00289.2016 |
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persistent identifier |
https://treatment.plazi.org/id/03AD87A8-FFD5-6D69-FF06-F8EC62A1802A |
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treatment provided by |
Felipe |
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scientific name |
Kotuitheca curta Missarzhevsky, 1974 |
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Kotuitheca curta Missarzhevsky, 1974
Fig. 51A–E.
Material.—About 20 internal moulds, including SMNH X5849–5853, from samples 3/12.2 (section 3, Fig. 3) and M321/31 (see below), Medvezhya Formation, Anabar Uplift, Siberian Platform, Russia. Correlated with the upper Fortunian Stage.
Description.—Short conch with a broadly oval, nearly circular cross-section, bluntly pointed apex weakly separated from the rest of the conch. Conch generally unevenly curved in one plane. It is gently bent or almost straight up to the middle of the conch or even closer to the aperture, where the curvature becomes more pronounced.
Remarks.—Several topotypes representing internal moulds were recovered from sample M321/31 collected from the Rassokha River (section M 321 in Rozanov et al. 1969; Missarzhevsky 1974: 181, pl. 23: 1, 2; Missarzhevsky 1989: 158, pl. 3: 5, pl. 4). The name spelling of the Kotuyitheca in Missarzhevsky (1974) was corrected to Kotuitheca in Missarzhevsky (1989).
Stratigraphic and geographic range.— Upper Fortunian Stage of the Siberian Platform.
| SMNH |
Department of Paleozoology, Swedish Museum of Natural History |
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