Hettangian

Hettangian

The Hettangian is the first stage of the Early Jurassic Epoch. It spans the time between 199.6 ± 0.6 Ma and 196.5 ± 1 Ma (million years ago). The stage follows the Rhaetian Stage of the Triassic Period.

The stage takes its name from Hettange-Grande, a town in northern France, just south of the border with Luxembourg on the main road from Luxembourg City to Metz.

In Europe this period, together with the Sinemurian, is also known as the Lower (or Blue) Lias Stage.

Vertebrate Fauna

Ichthyosaurs

References

* [http://www.stratigraphy.org/geowhen/stages/Hettangian.html GeoWhen Database - Hettangian]

See also

* Triassic-Jurassic extinction event


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • hettangian — HETTANGIÁN s.n. Primul (după unii cercetători, al doilea) etaj al jurasicului inferior (lias). // adj. Care aparţine acestui etaj. [pron. gi an. / < fr. hettangien]. Trimis de LauraGellner, 20.04.2005. Sursa: DN  HETTANGIÁN, Ă adj., s. n.… …   Dicționar Român

  • Hettangian Stage — ▪ geology       lowest of the four divisions of the Lower Jurassic Series, representing all rocks formed worldwide during the Hettangian Age, which occurred between 199.6 million and 196.5 million years ago during the Early Jurassic Period. The… …   Universalium

  • Jurassic — Period 199.6–145.5 million years ago …   Wikipedia

  • Jurassic Period — Interval of geologic time, 206–144 million years ago, that is one of the three major divisions of the Mesozoic Era, preceded by the Triassic Period and followed by the Cretaceous. During the Jurassic, Pangea began to break up into the present day …   Universalium

  • Middle Jurassic — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …   Wikipedia

  • Scelidosaurus — Taxobox name = Scelidosaurus fossil range = Early Jurassic image width = 250px image caption = Scelidosaurus regnum = Animalia phylum = Chordata classis = Sauropsida superordo = Dinosauria ordo = Ornithischia subordo = Thyreophora infraordo =… …   Wikipedia

  • Pliensbachian — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …   Wikipedia

  • Massospondylus — Opisthokonta Massospondylus Temporal range: Early Jurassic, 200–183 Ma …   Wikipedia

  • Oxfordian (stage) — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …   Wikipedia

  • Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”