1 Uni ver sity of Wroc³aw, In sti tute of Geo log i cal Sci ences, pl. M. Borna 9, 50-204 Wroc³aw, Po land Pluta, K., Górecka-Nowak, A., 2018. Miospore ev i dence for the Car bon if er ous age of rocks from the OEwiebodzice Unit (Sudetes, SW Po land). Geo log i cal Quar terly, 62 (1): 120-133, doi: 10.7306/gq.1393As so ci ate Ed i tor -Grzegorz RackiThe pa per pro vides new re sults of palynological stud ies of rocks from the OEwiebodzice Unit. An abun dant Car bon if er ous miospores were found in rocks of the Pogorza³a For ma tion from the south ern part of this unit. These miospores oc cur in rocks con tain ing also macrofloral and ma rine macrofaunal fos sils, partly re worked, which were usu ally con sid ered Up per De vo nian. Two miospore sub-as sem blages of dif fer ent ages and colours have been dis tin guished. One of them con sists of poorly pre served miospores, dark in col our, which in di cate the Late Visean-Serpukhovian age of the rocks. The other sub-as sem blage, found only in a few sam ples, con sists of much lighter and well-pre served miospores of the Asturian age. Their pres ence is con sid ered as a re sult of strati graphi cal leak age. Ob ser va tion of the miospore col our in di cates that the ther mal event oc curred af ter the Late De vo nian and be fore the Asturian and the palaeotemperature ex ceeded ~180°C. These new data in di cate that the geo log i cal his tory of the OEwiebodzice Unit lasted lon ger and was much com plex than it was pre vi ously con sid ered.
The collected material presents 512 mothers with children whose pregnancies were ended by caesarean section at the Department of Obstetrics, Women's Diseases and Oncological Gynecology Central Clinical Hospital of the Ministry of Internal Affairs in Warsaw in the years 2004-2016. The study group consisted of 362 mothers in pregnancies following in vitro fertilization and 150 mothers in spontaneous pregnancy, without the use of assisted reproductive technology. For the purposes of the project, only single pregnancies ending within weeks 37 to 41 of pregnancy were selected.Planned delivery by elective cesarean section (ECS) currently takes place after the 39 th week of pregnancy, in line with current common recommendations. This is related to studies finding an overall better birth condition of newborns in the general population, and especially regard-
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