Access from:

- Sesimbra - N379 heading to Espichel cape, 400 meters before you enter the Nossa Senhora do Cabo Sanctuary, there is a dirt road that will give you access to the cliff located north of the Lagosteiros beach.

GPS: 38.425379, -9.214178

Lagosteiros’s ichnofossil deposit is an important palaeontological occurrence. It stands out in the dinosaur palaeoichnology domain due to the high quality of the ichnites and trails and by its number, diversity and distribution through time. The site is on the top of the cliff that, on the north side, limits Lagosteiros beach where a yellowish brown limestone layer from the Lower Cretaceous outcrops, in which surface you can observe footprints, a testimony of the dinosaur’s presence 130-133 million years ago. The longest track seems to be of an ornithopod (biped herbivore dinosaur), probably a iguanodontidae, and the tridactyle (with 3 fingers) footprints were left behind by small theropods.

Cretaceous – last phase of the Mesozoic Era, between 135 and 165 million years ago.

Dinosaur – from the word dinosauria, created by a scientist to designate a group of organisms that today only exist fossils. Dinosaur comes from the Greek "deinós" meaning "astonishing, terrible, dangerous, hideous" e "saûro" meaning "lizard".

Ichnofossil or ichnite – from the Greek iknos meaning trace. In fact, it is a fossil trace of organisms’ activity that existed in the past (footprints, travel tracks, droppings, eggs and fossilized teeth marks are examples of ichnites).

Theropods - (meaning "beast-footed") dinosaurs belonging to the suborder Theropoda. Essentially carnivores and omnivores. They walked only on two legs (bipedal).