|Time span formality||Formal|
|Lower boundary definition||FAD of the Conodont Hindeodus parvus|
|Lower boundary GSSP||Meishan, Zhejiang, China|
|Lower GSSP ratified||2001|
|Upper boundary definition||Not formally defined|
|Upper boundary definition candidates|
|Upper boundary GSSP candidate section(s)|
The Early Triassic is the first of three
The Early Triassic is the oldest epoch of the
The Lower Triassic series is coeval with the Scythian Stage, which is today not included in the official timescales but can be found in older literature. In Europe, most of the Lower Triassic is composed of Buntsandstein, a lithostratigraphic unit of continental red beds.
The Early Triassic and partly also the
Early Triassic climate
The climate during the Early Triassic Epoch (especially in the interior of the supercontinent
The mostly hot climate of the Early Triassic may have been caused by late volcanic eruptions of the
Early Triassic life
Fauna and flora
The Early Triassic Epoch saw the recovery of life after the biggest mass extinction event of the past, which took millions of years due to the severity of the event and the harsh Early Triassic climate.
The most common land vertebrate was the small
Microbially induced sedimentary structures (MISS) are common in the fossil record of North China in the immediate aftermath of the Permian-Triassic extinction, indicating that microbial mats dominated local terrestrial ecosystems following the Permian-Triassic boundary. The regional prevalence of MISS is attributable to a decrease in bioturbation and grazing pressure as a result of aridification and temperature increase. MISS have also been reported from Early Triassic fossil deposits in Arctic Canada. The disappearance of MISS later in the Early Triassic has been interpreted as a signal of increased bioturbation and recovery of terrestrial ecosystems.
In the oceans, the most common Early Triassic hard-shelled marine invertebrates were
Aquatic vertebrates diversified after the extinction.
Fishes: Typical Triassic
Reptiles: In the oceans, first marine reptiles appeared during the Early Triassic.
Early Triassic brittle stars (echinoderms)
Fossils of thebivalve Claraiaclarai
Lystrosaurus hedini skeleton at the Museum of Paleontology in Tübingen
- Retallack, G. J.; . Retrieved 2007-09-29.
- Martinetto, Edoardo; Tschopp, Emanuel; Gastaldo, Robert, eds. (2020). Nature through Time: Virtual field trips through the Nature of the past. Springer International Publishing. ISBN 978-3-030-35057-4.