Triassic · 251.9 – 201.4 Ma
Triassic fossil sites
Life recovered slowly from the Permian extinction. The earliest dinosaurs, mammals, and modern coral groups all appeared in the Triassic. Marine fossil sites favor ammonites and the first ichthyosaurs and plesiosaurs.
Fossils typical of this period: early dinosaurs, ichthyosaurs, ammonites, Tasmanian fossil cliffs at Maria Island, Triassic conodonts.
11 fossil sites
Updated 27 July 2026
Berlin-Ichthyosaur State Park Fossil Hunting Guide
Nevada, United States
Shonisaurus popularis (giant ichthyosaur), Ammonites, Bivalves
Fossils of Aust Cliff Fossil Hunting Guide
England, United Kingdom
Shark teeth, Fish scales and teeth, Reptile remains, The Blue Lias
Ghost Ranch Coelophysis Quarry Fossil Guide
New Mexico, United States
Coelophysis bauri, Phytosaurs, Aetosaurs, Triassic reptiles
Ischigualasto Provincial Park Fossil Guide
San Juan, Argentina
Early dinosaurs, Eoraptor, Herrerasaurus, Rhynchosaurs
Lavernock Fossil Hunting Guide
Wales, United Kingdom
Ammonites, Brachiopods, Bivalves, Marine Reptiles
Monte San Giorgio (Besano-Meride) Fossil Hunting Guide
Lombardy, Italy
Besanosaurus leptorhynchus, Ceresiosaurus calcagnii, Saurichthys, Tanystropheus longobardicus
Painted Cliffs Maria Island Fossil Hunting Guide
within Maria Island National Park
trace fossils, sedimentary structures, Ripple marks, Cross-bedding
Paleorrota Geopark Fossil Hunting Guide
Rio Grande do Sul, Brazil
Staurikosaurus pricei (early dinosaur), Hyperodapedon (rhynchosaur), Dinodontosaurus (dicynodont), Exaeretodon (cynodont)
Penarth Beach Fossil Hunting Guide
South Wales, United Kingdom
Ammonites, Bivalves, Brachiopods, Gastropods
Petrified Forest National Park Fossil Hunting Guide
Arizona, United States
Petrified Araucarioxylon logs, Phytosaurs, Aetosaurs, Coelophysis-grade dinosaurs
Talampaya National Park Fossil Hunting Guide
La Rioja, Argentina
Dicynodonts (Dinodontosaurus), Cynodonts (Massetognathus), Rhynchosaurs (Hyperodapedon), Early dinosaurs (Eoraptor, Herrerasaurus relatives)