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Period Tr

Triassic

251.9020 – 201.4000 Ma

The Triassic is a geologic period and a stratigraphic system that spans 50.5 million years from the end of the Permian Period 251.902 Ma to the beginning of the Jurassic Period 201.4 Ma. The Triassic Period is the first and shortest geologic period of the Mesozoic Era, and the seventh period of the Phanerozoic Eon. The start and the end of the Triassic Period featured major extinction events.

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Triassic

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© Scotese, Christopher R.; Vérard, Christian; Burgener, Landon; Elling, Reece P.; Kocsis, Ádám T. · CC BY 4.0

Fossil genera 321

Protoichthyosaurus

Protoichthyosaurus

Marine reptiles

Marine reptiles

Pseudotrisauropus

Ichnogenus Formal taxon Extinct

Marine reptiles

Quasianosteosaurus

Marine reptiles

Raeticodactylus

Raeticodactylus

Marine reptiles

Ichnogenus Formal taxon Extinct

Marine reptiles

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News 15

Ancient Oceans Began Losing Oxygen Millions of Years before End-Triassic Mass Extinction

Chemical traces preserved in ancient rocks indicate that marine environments were deteriorating long before the catastrophe that wiped out vast numbers of species at the end of the Triassic period, around 201 million years ago. The post Ancient Oceans Began Losing Oxygen Millions of Years before End-Triassic Mass Extinction appeared first on Sci.News: Breaking Science News.

02/06/2026 sci-news

New English Crocodylomorph Honours Welsh Teacher

Scientists have identified a new species of ancient crocodylomorph from Upper Triassic rocks in southwest England. The newly named species, Galahadosuchus jonesi, lived around 215 million years ago and it represents the second species of non-crocodyliform crocodylomorph described from the Late Triassic–aged fissures of the Bristol Channel area. Non-crocodyliform crocodylomorph fossil material is known from

01/06/2026 everythingdinosaur

Meet the “Crocodile Witch,” a 212-million-year-old toothless creature from the Triassic that walked on two legs

More than 200 million years ago, long before modern crocodiles, a strange creature already roamed the Earth on two legs. Its appearance defies everything we imagine about these formidable reptiles. Without teeth, with a beak and a silhouette more reminiscent of certain...

30/05/2026 futura-terre ⚙ Auto-translated

This bizarre crocodile relative from the Triassic looked like an ostrich dinosaur

Scientists have discovered Labrujasuchus expectatus, a bizarre crocodile relative that looked more like an ostrich-like dinosaur than anything resembling a modern crocodile. It walked on two legs, had tiny arms, and sported a toothless beak—an unexpected combination for a member of the crocodile lineage.

29/05/2026 sciencedaily

Toothless, Bipedal Crocodile Relative Lived in New Mexico 212 Million Years Ago

Paleontologists have described a new species of bipedal shuvosaurid archosaur from New Mexico, shedding light on a group of creatures that roamed North America during the Triassic period, more than 200 million years ago. The post Toothless, Bipedal Crocodile Relative Lived in New Mexico 212 Million Years Ago appeared first on Sci.News: Breaking Science News.

27/05/2026 sci-news

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Parent interval

Sub-intervals 3

251.9020 – 246.7000

Middle Triassic

246.7000 – 237.0000

237.0000 – 201.4000