EntityQ824979· pop 12· linked from 743 articlesgroupSign in to savein geology, a stratigraphic unit, smaller than a supergroup and larger than a subgroupConnectionsstratigraphic unitEntityNew MexicoEntityInternational Standard Book NumberEntitydigital object identifierEntityJurassicEntityTriassicEntitygeologic time scaleEntityPermianEntityergEntitygeochronologyEntitylithologyEntitygeological formationEntityLate JurassicEntityInternational Commission on StratigraphyEntityMiddle JurassicEntitychronostratigraphyEntitylithostratigraphyEntityMuschelkalkEntityBuntsandsteinEntityKeuper GroupEntityCategoriesGeological groups