Crinoidal calcarenite association of ref. 1511.
Facies includes stromatoporoid bindstones, chaotic resedimented comglomerates and abundant crinoidal calcarenites.
Reef core with predominantly hemispheric and rarely laminar and irregular stromatoporoid bindstone containing a few tabulate corals.
Laterally grading into strom. floatstone (50 % strom. in skeletal wackestone matrix). Crinoidal calcarernite forms flank beds.
No stromatolites
Very rare micrite
No fenestrae