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Paškevičius & Hints, L., 2016

New Early Katian species of Leptestiidae and Hesperorthidae (Brachiopoda) from Lithuania

Paškevičius, J., Hints, L.
DOI10.3176/earth.2016.05
Aasta2016
AjakiriEstonian Journal of Earth Sciences
Köide65
Number2
Leheküljed75-84
Tüüpartikkel ajakirjas
OpenAccess
LitsentsCC BY 4.0
Eesti autor
Keelinglise
Id4835

Abstrakt

A new leptestiid brachiopod species of the genus Sampo and a hesperorthid specie of the genus Dolerorthis are described from the Early Katian Oandu Stage of southern Lithuania. The new species Sampo suduvensis and Dolerorthis nadruvensis are common brachiopods for the Howellites wesenbergensisHedstroemina subaequiclinaReushella magna community of the ithuanian shelf. In the East Baltic the brachiopods of the genus Sampo appear first in the deeper part of the Lithuanian shelf in siliciclastic lithologies. The genus Dolerorthis is identified for the first time in the East Baltic. The new species Dolerorthis nadruvensis differs from other related Hesperorthidae brachiopods in the region. An exception in the Late Katian species Boreadorthis recula from Estonia, which shows similarity with D. nadruvensis in shell size and ornamentation. Still, the generic relationship of these species requires further studies. The ne species of brachiopods are a supplement to the brachiopod fauna of southern Lithuania.

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