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2022. Ubinia jipai n. isp. and Megagrapton isp. (Graphoglyptida) in the middle member of the Sinaia formation (Upper Berriasian-Lower Hauterivian) from Prahova Valley (Romania). Geo-Eco-Marina. 28, (Dec. 2022), 89–99. DOI:https://doi.org/10.5281/zenodo.7491418.