- journal_title：Bollettino della Societa Geologica Italiana
- Contributor：Paola Pittau ; Myriam Del Rio ; Antonio Funedda
- Publisher：The Electrochemical Society
- Date：2008-
- Format：text/html
- Language：en
- journal_abbrev：Bollettino della Societa Geologica Italiana
- issn：2038-1719
- volume：127
- issue：3
- firstpage：637
- section：Structural geology
Central and south Sardinia basins are coeval with the extensional postcollision phase of the Sardinian branch of the Variscan chain. Palynological remains of lacustrine and fluvial-lacustrine strata, preserve with acceptable approximation the floral composition the areas surrounding each basin and their individual vegetation structure. On a quantitative base, we recognize name four distinct palynological phases: Pteridophytic pre-Striatiti pollen Phase (Westphalian C-Stephanian A); Florinites Phase (Stephanian/Autunian) with relatively dominant Cordaites pollen grains; Potonieisporites Phase (Asselian) with dominant Voltziales (Potonieisporites) monosaccate pollens; Vittatina-Striatiti pollen Phase (Asselian (?) Sakmarian age) corresponding to a notable increasing of vittatinids and disaccate taeniatae pollen grains. Coupling physiognomy of the major paleobotanical component for each palynological phase, and regional geology, a hypothesis on the relationships between basins evolution and post-collision exhumation is given.