Early Jurassic
Sign in to saveAlso known as Lower Jurassic, Early Jurassic Epoch, Lower Jurassic Epoch
first epoch of the Jurassic period
Wikidata facts
- Instance of
- epoch
- Has part
- Hettangian
- Named after
- Jura Mountains
- Followed by
- Middle Jurassic
- Follows
- Late Triassic
Show 6 more facts
- topic's main category
- Category:Early Jurassic
- Commons category
- Early Jurassic
- sRGB color hex triplet
- 00B7EA
- start time
- 201300000-
- end time
- 174100000-
- described by source
- Encyclopædia Britannica 11th edition
Sources (3)
via Wikidata · CC0
~7 min read
Encyclopedic overview
Subdivision of the Jurassic according to the ICS, as of 2024. Vertical axis scale: Millions of years ago
Etymology Chronostratigraphic nameLower Jurassic Geochronological nameEarly Jurassic Name formalityFormal Usage information Celestial bodyEarth Regional usageGlobal (ICS) Time scale(s) usedICS Time Scale Definition Chronological unitEpoch Stratigraphic unitSeries Time span formalityFormal Lower boundary definitionFAD of the Ammonite Psiloceras spelae tirolicum. Lower boundary GSSPKuhjoch section, Karwendel mountains, Northern Calcareous Alps, Austria 47°29′02″N 11°31′50″E / 47.4839°N 11.5306°E / 47.4839; 11.5306 Lower GSSP ratified2010 Upper boundary definitionFAD of the Ammonites Leioceras opalinum and Leioceras lineatum Upper boundary GSSPFuentelsaz, Spain 41°10′15″N 1°50′00″W / 41.1708°N 1.8333°W / 41.1708; -1.8333 Upper GSSP ratified2000
Excerpted from Wikipedia’s “Early Jurassic” article, available under the CC BY-SA 4.0 licence.
On the map
2 mapped locations