MODELLO

The fossil associations (FA), represented by the biozones of rudist's species, in the Cuban territory they distinguish, the lithostratigraphic units of different ages and paleaeogeographic domain.
The rudists' FA, well-known in Cuba, are well correlationable with those of the other Antillean islands and the cretaceous continental margins.
The Amphitriscoelus waringi FA of the Lower Aptian has its isocrons in Mexico, in the Caribbean island (Trinidad) and in Europe (France); linked to the Thetys continental margin.
On the other hand, the FA of Tepeyacia corrugata, Durania curasavica and of Barrettia monilifera, of the Albiano, Santoniano and Campaniano respectively ages, only appear in the Antillean region and Mexico; being shown essentially as characteristic faun of the cretaceous volcanic island arc.
The FA of T. giganteus extends to the biggest Antilles, the platform of Bahamas (Cuba), Central America and Mexico (Chiapas); related with the development of the Maastrichtian shallow carbonatic platforms.
Then, the FA sharply is an useful tools of stratigrafical correlation between the cretaceous Antillean - Caribbean terranes.