摘要：The coatings of oncoids, found in packstones-grainstones of the Pliensbachian Massone Member (Calcari Grigi Formation, Trento Platform), are made up of two groups of microorganisms intergrowing each other, which are attributed to calcified cyanobacteria: (1) a new taxon of the family Thaumatoporellaceae De Castro, 1988, and (2) a form provisionally assigned to Pseudolithocodium carpaticum Misik, 1979. Well-preserved crusts of Koskinobullina socialis Cherchi & Schroeder, 1979 from the Cenomanian of Northern Spain, intergrowing with rhodophycean algae, are presented. The problematic genus Lithocodium Elliott, 1956 (Trias to Cretaceous), firstly attributed to codiacean algae and later on considered to be a loftusiid foraminifer by Schmid & Leinfelder (1996), may be interpreted as calcimicrobial colonies
Loading...
