A new limid bivalve from the La Meseta Formation (Eocene) of Seymour Island, Antarctic Peninsula

Jeffrey D. Stilwell, Andrzej Gaździcki

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Several specimens of an unusual limid bivalve were collected recently from basal transgressive facies (Telml) of the Eocene La Meseta Formation, Seymour (Marambio) Island. Antarctic Peninsula. This bivalve represents a new subgenus and species, described herein as Acesta (Antarcticesta) laticosta subgen. et sp. n. Acesta (Acesta) bibbyi STILWELL & ZINSMEISTER, 1992, and Acesta (Antarcticesta) laticosta subgen. et sp. n. are the only limid bivalves recorded from the Eocene of Antarctica, but the history of the family in Antarctica extends from Cretaceous to Recent. Acesta (Antarcticesta) subgen. n. is monotypic and endemic to Antarctica with no known close relative.

Original languageEnglish
Pages (from-to)149-155
Number of pages7
JournalActa Geologica Polonica
Issue number2
Publication statusPublished - 1 Dec 1998

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