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 323
—
Navahopus
Dinosaurs
Ichnogenus Formal taxon Extinct
1 occ.
Ophthalmosaurus
Ophthalmosaurus
Marine reptiles
Valid Extinct
1 occ.
Pachypleurosaurus
Pachypleurosaurus
Marine reptiles
Valid Extinct
1 occ.
Pampadromaeus
Pampadromaeus
Dinosaurs
Valid Extinct
1 occ.
—
Pengxianpus
Dinosaurs
Ichnogenus Formal taxon Extinct
1 occ.
—
Plesiornis
Dinosaurs
Ichnogenus Formal taxon Extinct
1 occ.
Pliosaurus
Pliosaurus
Marine reptiles
Valid Extinct
1 occ.
Psephoderma
Psephoderma
Marine reptiles
Valid Extinct
1 occ.
—
Psephosauriscus
Marine reptiles
Valid Extinct
1 occ.
Pteraichnus
Pteraichnus
Pterosaurs
Ichnogenus Formal taxon Extinct
1 occ.
Pterodactylus
Pterodactylus
Pterosaurs
Valid Extinct
1 occ.
Saturnalia
Saturnalia
Dinosaurs
Valid Extinct
1 occ.
Scutellosaurus
Scutellosaurus
Dinosaurs
Valid Extinct
1 occ.
Shastasaurus
Shastasaurus
Marine reptiles
Valid Extinct
1 occ.
Stormbergia
Stormbergia
Dinosaurs
Valid Extinct
1 occ.
Temnodontosaurus
Temnodontosaurus
Marine reptiles
Valid Extinct
1 occ.
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News 23
240-million-year-old reptile fossil reveals a lost chapter before dinosaurs and crocodiles
A 240-million-year-old reptile discovered in Brazil is revealing what evolution looked like just before the rise of dinosaurs and crocodiles. The small predator had unusually positioned legs that may have allowed it to move more efficiently than many earlier reptiles. Its close relatives were previously known mostly from other continents, suggesting these ancient animals spread much farther across the Triassic world than scientists realized.
10/08/2026 sciencedaily
244-Million-Year-Old Fossil Preserves Earliest Reptilian Digestive System
244-Million-Year-Old Fossil Preserves Earliest Reptilian Digestive System
An exquisitely preserved specimen of Austronaga minuta, a small, long-necked marine reptile from the Triassic of China, contains a fossilized stomach, liver and intestines, offering paleontologists their oldest detailed glimpse yet of how early reptiles digested food. The post 244-Million-Year-Old Fossil Preserves Earliest Reptilian Digestive System appeared first on Sci.News: Breaking Science News.
04/08/2026 sci-news
A forgotten fossil just revealed a new Triassic predator from 210 million years ago
A fossil overlooked for nearly 80 years has revealed a previously unknown crocodile relative that lived 210 million years ago in what is now New Mexico. Named Eosphorosuchus lacrimosa, the jackal-sized predator had a reinforced skull, powerful jaw muscles, and a short snout built for tackling larger prey.
30/07/2026 sciencedaily
New Species of Triassic Dinosaur Discovered on Shores of Zimbabwe’s Lake Kariba
New Species of Triassic Dinosaur Discovered on Shores of Zimbabwe’s Lake Kariba
An international team of paleontologists has identified a new species of early sauropodomorph dinosaur in Zimbabwe, adding to growing evidence that southern Africa hosted a richer diversity of dinosaurs during the Late Triassic epoch than previously recognized. The post New Species of Triassic Dinosaur Discovered on Shores of Zimbabwe’s Lake Kariba appeared first on Sci.News: Breaking Science News.
29/07/2026 sci-news
Newly Described Sauropodomorph from the Late Triassic of Zimbabwe
A team of international researchers have described a new dinosaur based on fossils found in Zimbabwe. This newly described sauropodomorph named Musango matusadonaensis lived during the Late Triassic (Norian faunal stage), around 210 million years ago. Musango is the fifth dinosaur to be named from fossils discovered in Zimbabwe. Furthermore, these fossils further support the
29/07/2026 everythingdinosaur
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Parent interval
Mesozoic Era
Sub-intervals 3
Early Triassic
251.9020 – 247.0000
Middle Triassic
247.0000 – 237.0000
Late Triassic
237.0000 – 201.4000