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Vinn et al., 2022e

New bioclaustration of a symbiont in the mantle cavity of Clitambonites schmidti (Brachiopoda) from the Sandbian (Upper Ordovician) of Estonia

Vinn, O., Wilson, M. A., Isakar, M., Toom, U.
DOI
DOI10.2110/palo.2021.067
Aasta2022
AjakiriPalaios
Köide37
Number9
Leheküljed520-524
Tüüpartikkel ajakirjas
Eesti autor
Keelinglise
Id45834

Abstrakt

A new bioclaustration of a symbiont is here described from the mantle cavity of the strophomenatan brachiopod Clitambonites schmidti. It is the second bioclaustration in brachiopods known from the Kukruse Regional Stage (Sandbian) of Estonia. It shares affinities with the bioclaustrations Burrinjuckia and Haplorygma. The outgrowth in the ventral valve interior was secreted by the brachiopod around a symbiont. Most likely the symbiont was a suspension feeder that collected food particles from the brachiopod’s mantle cavity. The symbiont was either a kleptoparasite or fed on the brachiopod’s feces (coprophagy). The majority of symbiosis cases in brachiopods in the Ordovician of Baltica involve clitambonitids as the hosts. Thus, clitambonitid brachiopods were more likely hosts for symbiosis than other brachiopods in the Ordovician of Baltica.

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