 There are also marmots.In the approximately 300 million year old slate from the Carboniferous Period, fossilised plants had already been found in the late 18th century.Scientifically recorded for the first time in 1835 by Ami Boué, there are 72 species of coal forest plants from the "Stangalpe" known today, among which are the giant horsetails ("Calamites"), "Sigillaria", ferns ("Pecopteris"), "Cordaites" and conifers ("Dicranophyllum").