New species of Asperarca (Bivalvia, Arcidae) from the Upper Eocene of Ukraine
Tóm tắt
Two new species of Asperarca, A. acuta and A. microida, from the Upper Eocene of the Ukraine (Dnepropetrovsk, Mandrikovka Beds) are described. This genus is recorded for the first time in the Paleogene. The most ancient previously known records of Asperarca were dated Miocene.
Tài liệu tham khảo
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