Ammonites were cephalopods, relatives of today's nautilus, octopus and squid. They are extinct now, but used to be among the most common organisms living in the Triassic seas. There are many examples of their fossilised remains, ranging from perfectly 3-dimensional to completely flattened. The rapid morphological changes in many groups make them an important tool in rock dating. Many species in fact only lived for a few thousand years.

This natural asset is part of the tour "Browsing through the rocks of the Secëda mountain".

Along with few other molluscs, the bivalve genus Claraia is among the organisms that best adapted to the critical environmental conditions of the coastal sea waters after the extinction event taking place 252 million years ago. Remains of other organisms are only occasionally found in association with Claraia, showing just how extreme the environment was. It was apparently the only one surviving under these conditions.

This natural asset is part of the tour "Browsing through the rocks of the Secëda mountain".

Ortiseia leonardii was a large conifer similar to today's Araucaria in South America. It grew along rivers flowing through a semi-dry flood plain, represented today by the red Val Gardena Sandstone rock unit. The best-preserved fossils come from the area around Ortisei, which lends the genus its name. These plants are presumed to have formed small forests that were the habitat of a large number of animals drawn there by the water. 

This natural asset is part of the tour "Browsing through the rocks of the Secëda mountain".