Asexual organisms are of fascination to biologists because most multicellular organisms have chosen sex in some form or other for reproduction. The interest stems from the clear theoretical advantage of asexual reproduction which results in the transfer of a full complement of genes to an offspring rather than the 50 per cent that results from sexual reproduction. Researchers are keen to determ...

The present work deals with the first record of ostracods in Estiva Formation, Pernambuco Basin (Cupe, 1 LABIO-PE1 borehole). extends throughout southern coast state and is limited by Shear Zone, north Maragogi High, south. Formation consists continental shelf carbonates dated as Upper Cretaceous. analysis interpretation data were performed through literature review, stratigraphic surveys, samp...