Home / Services / Alfonso XIII Royal Botanical Garden / CiBi / Biogeological Clock / Jurassic
Español     RSS

Jurassic

201-145 M.a.

Defined by Alexander von Humboldt in the Jura Mountains (Switzerland).
Mapamundi
Jurassic limestone
Jurassic limestone in El Torcal de Antequera (Malaga, Spain).

Ammonites
Ammonites (cephalopod mollusc, ammonoidea).

Archeopteris
Archeopteris (bird) in a tree fern forest.

The Atlantic Ocean begins to widen and Pangaea splits into two supercontinents: Laurasia in the north (North America, Greenland and Eurasia) and Gondwana in the south (South America, Africa, India, Antarctica and Australia). The block made up of India, Antarctica and Australia separates from Gondwana towards the end of the period and the Indian Ocean begins to open.


The continuing rise of the sea level floods the continents and Europe is reduced to an archipelago. The warm, humid climate gives rise to the development of a rich vegetation of conifers, ginkgo, cycads and tree ferns.


Large dinosaurs dominate the terrestrial fauna while mammals occupy the residual biological niches. Marine life flourishes intensely and large accumulations of organic matter will turn into oil deposits. Ammonites, ichthyosaurs and plesiosaurs are the most prominent aquatic animals. Pterosaurs dominate the Jurassic skies and the first birds appear at the end of the period.





Hadean ~4600-4000 M.a.
Archean 4000-2500 M.a.
Proterozoic 2500-541 M.a.
Cambrian 541-485 M.a.
Ordovician 485-443 M.a.
Silurian 443-419 M.a.
Devonian 419-359 M.a.
Carboniferous 359-299 M.a.
Permian 299-252 M.a.
Triassic 252-201 M.a.
Jurassic 201-145 M.a.
Cretaceous 145-66 M.a.
Paleogene 66-23 M.a.
Neogene 23-2,6 M.a.
Quaternary 2,6 M.a.-act.


Ministry of Education, Culture & Sports CEI Campus of International Excellence Ministry of Economy & Competitiveness
Funded project by the Ministry of Education, Culture & Sports, and the Ministry of Economy & Competitiveness within the framework of the Campus of International Excellence
Navigating this website constitutes acceptance of the use of cookies by third parties and own, necessary for proper operation.