Middle Tr.
E739709
The Middle Triassic is a geologic epoch of the Triassic period marked by significant recovery and diversification of life following the end-Permian mass extinction.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Middle Triassic | 0 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | geologic epoch ⓘ |
| abbreviation | Middle Tr. ⓘ |
| alsoKnownAs |
Middle Triassic Epoch
NERFINISHED
ⓘ
Middle Triassic Series NERFINISHED ⓘ |
| bioticEvent |
continued recovery of reef ecosystems
ⓘ
expansion of nektonic marine predators ⓘ radiation of modern-type coral reefs ⓘ |
| characterizedBy |
diversification of marine life
ⓘ
diversification of terrestrial life ⓘ recovery of life after end-Permian mass extinction ⓘ stabilization of global ecosystems after Early Triassic crises ⓘ |
| chronostratigraphicRank | series ⓘ |
| climate |
generally warm
ⓘ
seasonally arid in many continental interiors ⓘ |
| containsAge |
Anisian
NERFINISHED
ⓘ
Ladinian NERFINISHED ⓘ |
| end | approximately 237 million years ago ⓘ |
| follows | Early Triassic ⓘ |
| geochronologicRank | epoch ⓘ |
| GSSP |
Anisian base GSSP at Deşli Caira, Romania
ⓘ
Ladinian base GSSP at Bagolino, Italy NERFINISHED ⓘ |
| marineFauna |
ammonoids
ⓘ
bivalves ⓘ conodonts ⓘ marine reptiles ⓘ |
| marineReptiles |
ichthyosaurs
ⓘ
nothosaurs ⓘ pachypleurosaurs ⓘ |
| ocean |
Paleo-Tethys Ocean
NERFINISHED
ⓘ
Panthalassa Ocean NERFINISHED ⓘ |
| oldestAge | Anisian NERFINISHED ⓘ |
| paleogeography | dominated by supercontinent Pangaea ⓘ |
| partOf |
Mesozoic Era
NERFINISHED
ⓘ
Triassic ⓘ |
| plantLife |
conifers
ⓘ
lycophytes ⓘ seed ferns ⓘ |
| positionInPeriod | middle epoch of the Triassic Period ⓘ |
| precedes | Late Triassic NERFINISHED ⓘ |
| significance | major step in biotic recovery after Permian–Triassic extinction event ⓘ |
| start | approximately 247.2 million years ago ⓘ |
| stratigraphicBoundariesDefinedBy | first appearance of specific ammonoid and conodont index fossils ⓘ |
| terrestrialFauna |
archosauriforms
ⓘ
early dinosaurs relatives ⓘ temnospondyl amphibians ⓘ therapsids ⓘ |
| timeScale | Mesozoic Era NERFINISHED ⓘ |
| youngestAge | Ladinian ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.