|mhorn||Дата: Sunday, 07.07.2013, 22:15 | Сообщение # 1|
|Cabral M.C., Colin J.P., Azerêdo A.C., Silva R.L., Duarte L.V. (2013) Associações de ostracodos da Formação de Coimbra (Sinemuriano) de S. Pedro de Moel: valor paleoecológico e Paleobiogeográfico // Comunicações Geológicas, 100, Especial I, 43-47. |
Twelve samples from the marly levels of the limestone succession from São Pedro de Moel region, exposed along the coastline of the Praia Velha and Praia da Concha (Coimbra Formation, Lower to Upper Sinemurian), were studied as regards to ostracods. The recognized fauna is relatively scarce and very poorly preserved at the base, then it gradually becomes more abundant and diversified upwards, being also better preserved; in some levels, more than 2.000 specimens were collected. The fauna is very similar to those described in other European regions, in levels of the same age or relatively close, namely in the Fastnet Basin, offshore SW Ireland and in France, though exhibiting several new species. In the studied sections, the ostracods suggest variable facies, reflecting either a shallow marine environment, usually restricted, or a more open to brackish one.
Middle Jurassic - Lower Cretaceous ammonites & aptychi