Articles | Volume 45, issue 2
https://doi.org/10.5194/jm-45-547-2026
https://doi.org/10.5194/jm-45-547-2026
Research article
 | 
24 Jul 2026
Research article |  | 24 Jul 2026

Emendation of the genera Selenopemphix and Multispinula (Peridiniales, Dinophyceae), with the description of Multispinula varispinosa sp. nov. and Multispinula robusta sp. nov.

Ophélie David, Pjotr Meyvisch, Haifeng Gu, Gwenael Bilien, Dave Clarke, Fabienne Marret, and Kenneth N. Mertens

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Cited articles

Abé, T. H.: Studies on the family Peridinidae an unfinished monograph on the armoured dinoflagellata, Spec. Publ. Seto Mar. Biol. Lab. 6. Acad. Sci. Book Tokyo, 6, 1–409, 1981. 
Bada, J. L., Wang, X. S., and Hamilton, H.: Preservation of key biomolecules in the fossil record: current knowledge and future challenges, Philos. T. Roy. Soc. B, 354, 77–87, https://doi.org/10.1021/bk-1998-0707.ch005, 1999. 
Balech, E.: El genero “Protoperidinium conicum” Bergh, 1881 (“Peridinium” Ehrenberg, 1831, partim), Revista Mus Argent Ci Nat, Bernardino Rivadavia Inst. Nac. Invest. Ci. Nat. Bot., 4, 1–79, 1974. 
Balech, E.: On the thecal morphology of dinoflagellates with special emphasis on cingular and sulcal plates, An. Centro Cienc. Mar. Limnol. Univ. Nat. Auton. Mexico., 7, 57–68, 1980. 
Benedek, P.: Phytoplanktonten aus dem Mittel- und Oberoligozän von Tönisberg (Niederrheingebiet), Paleontographica, B 137, 1–71, 1972. 
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By combining incubation experiments, microscopy, biomolecular analyses, and spectroscopy to assess the biomacromolecular composition of cyst walls, we show that Selenopemphix and Multispinula represent two distinct cyst-based genera, with different preservation potentials. We emend their diagnoses and describe two new Multispinula species, M. varispinosa sp. nov. and M. robusta sp. nov., in addition to M. quanta
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