LATE JURASSIC EUROPE
LOURINHA FORMATION
updated 110313
The Lourinhã Formation is a geological formation in West Portugal. The formation is Late Jurassic in age (Kimmeridgian/Tithonian) and is notable for containing a fauna similar to that of the Morrison Formation in the United States and the Tendaguru beds in Tanzania.
Allosaurus europaeus was found in the Kimmeridgian-age Porto Novo Member of the Lourinhã Formation,but may be the same as Allosaurus fragilis.
Lourinhanosaurus antunesi was a rather large carnivorous dinosaur similar to Marshosaurus. A full grown adult would have reached 8 meters, taking 10 years to reach that size. Dinosaur eggs and embryos, believed to be those of Lourinhanosaurus, have also been discovered; a nest containing more than 100 eggs, some with well-preserved embyros.
Ceratosaurus dentisulcatus and Torvosaurus are present. Ceratosaurus is smaller than Allosaurus and Torvosaurus was larger. The Late Jurassic had a greater diversity of large theropods than the later Late Cretaceous.