sentences:  There are also similarities to the nearby Villar del Arzobispo Formation.The stratigraphy of the formation and the basin in general is complex and controversial, with the constituent member beds belonging to the formation varying between different authors
  
  Besides the fossil bones, Lourinhã Formation is well known for the fossil tracks and fossilized dinosaur eggs.The Lourinhã Formation includes several lithostratigraphic units, such as Praia da Amoreira-Porto Novo Members and the Sobral Unit.