|mhorn||Дата: Sunday, 07.07.2013, 22:14 | Сообщение # 1|
|Comas-Rengifo M.J., Duarte L.V., García Joral F., Goy A. (2013) Los braquiópodos del Toarciense Inferior (Jurásico) en el área de Rabaçal-Condeixa (Portugal): distribución estratigráfica y paleobiogeografía // Comunicações Geológicas, 100, Especial I, 37-42 |
The brachiopods from the Lower Toarcian of the RabaçalCondeixa (Lusitanian Basin) area are studied. A very diverse assemblage is recorded in the Polymorphum Zone, including both NW European and Mediterranean taxa. The typical species of the socalled “Koninckella Fauna”, that is supposedly associated to deep or oxigen-poor environments are also recorded throughout this Zone. Brachiopods disappear in the first levels of the Levisoni Zone and beginning of the Thin nodular limestones member of the S. Gião Formation. Brachiopods recovery is marked by the appearance of Soaresirhynchia bouchardi, followed by the typical representatives of the “Spanish Fauna” - species of Telothyris, Homoeorhynchia and Choffatirhynchia - that are distributed also in the first levels of the Bifrons Zone.
Middle Jurassic - Lower Cretaceous ammonites & aptychi