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fossil

Specimen nature

267 image(s) · 171 News

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Rendering of newly discovered dinosaur Dinevenator robustus. This troodontid was identified in 2026 from a fossil collected from San Juan County.
Taxa Dinevenator

Rendering of newly discovered dinosaur Dinevenator robustus. This troodontid was identified in 2026 from a fossil collected from San Juan County.

fossil Dinevenator Troodontidae
A broken concretion with fossils inside; Late Cretaceous Pierre shale, near Ekalaka, Montana.
Formations Pierre Shale

A broken concretion with fossils inside; Late Cretaceous Pierre shale, near Ekalaka, Montana.

Pierre Shale Cretaceous Late Cretaceous fossil
The distictive banding of the Morrison Formation, a group of rock layers that occur throughout Dinosaur National Monument. The formation originated as muds and sands laid down by ancient rivers, and some of its outcrops have been found to contain 150-million-year-old dinosaur fossils like those found at the monument's Dinosaur Quarry.
Formations Morrison

The distictive banding of the Morrison Formation, a group of rock layers that occur throughout Dinosaur National Monument. The formation originated as muds and sands laid down by ancient rivers, and some of its outcrops have been found to contain 150-million-year-old dinosaur fossils like those found at the monument's Dinosaur Quarry.

Morrison fossil Dinosauria formation
Bituminous claystone, Lower Jurassic, Hesselberg, Middle Franconia. Sedimentary rock of very thin laminated layers (particles less than 0,0002 mm). Rock formation is known for its rich fossil findings, ex. Ichthyosaur.
Formations Posidonia Shale

Bituminous claystone, Lower Jurassic, Hesselberg, Middle Franconia. Sedimentary rock of very thin laminated layers (particles less than 0,0002 mm). Rock formation is known for its rich fossil findings, ex. Ichthyosaur.

Jurassic fossil Ichthyosauria formation
Khaan fossil holotype IGM 100/1127.
Taxa Khaan

Khaan fossil holotype IGM 100/1127.

United States fossil holotype Khaan
The Natural Science Museum at El Chocón, in the northwestern Argentine Patagonia (the Comahue region). Fossil of dinosaur
Taxa Skorpiovenator

The Natural Science Museum at El Chocón, in the northwestern Argentine Patagonia (the Comahue region). Fossil of dinosaur

museum Argentina fossil Dinosauria +1
Nyasasaurus is a basal dinosauromorph that may be the earliest known dinosaur. It was a small bipedal animal at about 2-3 m in length. Nyasasaurus is difficult to classify due to inconclusive fossil evidence, but if it is a true dinosaur, it pushes the dinosaur lineage back about 12 million years to the Middle Triassic.
Taxa Nyasasaurus

Nyasasaurus is a basal dinosauromorph that may be the earliest known dinosaur. It was a small bipedal animal at about 2-3 m in length. Nyasasaurus is difficult to classify due to inconclusive fossil evidence, but if it is a true dinosaur, it pushes the dinosaur lineage back about 12 million years to the Middle Triassic.

Middle Triassic Triassic fossil Dinosauria +1
Fossil at the Museo Argentino de Ciencias Naturales in Caballito, Buenos Aires, Argentina.
Taxa Pterodaustro

Fossil at the Museo Argentino de Ciencias Naturales in Caballito, Buenos Aires, Argentina.

Argentina fossil Pterodaustro
Sidersaura is a rebbachisaurid sauropod dinosaur from the Late Cretaceous of Argentina. Rebbachisaurids are the last known dipldocoids, and lived alongside the titanosaurs until fairly late in the Cretaceous before disappearing from the fossil record, presumably going extinct. They have long tails and relatively short necks, by sauropod standards. Sidersaura one of the most recent rebbachisaurids yet found, living in the Cenomanian–Turonian ages of the Late Cretaceous. It was large for a rebbachisaurid, growing to about 20 m in length.
Taxa Sidersaura

Sidersaura is a rebbachisaurid sauropod dinosaur from the Late Cretaceous of Argentina. Rebbachisaurids are the last known dipldocoids, and lived alongside the titanosaurs until fairly late in the Cretaceous before disappearing from the fossil record, presumably going extinct. They have long tails and relatively short necks, by sauropod standards. Sidersaura one of the most recent rebbachisaurids yet found, living in the Cenomanian–Turonian ages of the Late Cretaceous. It was large for a rebbachisaurid, growing to about 20 m in length.

Argentina Cenomanian Cretaceous Late Cretaceous +6
Fossil of Mei long (holotype), on temporary display at the Shanghai Natural History Museum as part of the exhibition "China's Dinosaur World". Shot on July 22, 2025.
Taxa Mei

Fossil of Mei long (holotype), on temporary display at the Shanghai Natural History Museum as part of the exhibition "China's Dinosaur World". Shot on July 22, 2025.

museum China fossil holotype +1
Fossil specimen (IVPP V17903) of Corpulentapus lilasia on display at the Paleozoological Museum of China.
Taxa Corpulentapus

Fossil specimen (IVPP V17903) of Corpulentapus lilasia on display at the Paleozoological Museum of China.

museum China fossil specimen +1
Known fossil pieces after Aviatyrannis jurassica (Dinosauria, Theropoda, Coelurosauria, Tyrannosauroidea).[1] Sources ↑ Rauhut O.W.M. (2003), "A tyrannosaurid dinosaur from the Upper Jurassic of Portugal", Paleontology 46(5): p. 903-910.
Taxa Aviatyrannis

Known fossil pieces after Aviatyrannis jurassica (Dinosauria, Theropoda, Coelurosauria, Tyrannosauroidea).[1] Sources ↑ Rauhut O.W.M. (2003), "A tyrannosaurid dinosaur from the Upper Jurassic of Portugal", Paleontology 46(5): p. 903-910.

Portugal Jurassic fossil Aviatyrannis +5
Datousaurus. Fossil in Shanghai Science & Technology Museum
Taxa Datousaurus

Datousaurus. Fossil in Shanghai Science & Technology Museum

museum fossil Datousaurus
Fossil of Santanadactylus pricei and Anhanguera santanae, an extinct pterosaur- Took the photo at Senckenberg Museum of Frankfurt
Taxa Santanadactylus

Fossil of Santanadactylus pricei and Anhanguera santanae, an extinct pterosaur- Took the photo at Senckenberg Museum of Frankfurt

museum fossil Anhanguera Pterosauria +1
Fossil of Santanadactylus pricei and Anhanguera santanae, an extinct pterosaur- Took the photo at Senckenberg Museum of Frankfurt
Formations Romualdo

Fossil of Santanadactylus pricei and Anhanguera santanae, an extinct pterosaur- Took the photo at Senckenberg Museum of Frankfurt

museum fossil Anhanguera Pterosauria +1
Fossil of Peteinosaurus zambellii (paratype MCSNB 3359), an extinct reptile
Taxa Peteinosaurus

Fossil of Peteinosaurus zambellii (paratype MCSNB 3359), an extinct reptile

fossil Peteinosaurus
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News

“One-in-a-million” sea creature fossil preserves soft tissue for 450 million years
tissue fossil Dinosauria
Scientists have identified exceptionally rare soft tissue preserved in a 450-million-year-old crinoid fossil, more than 200 million years older than the first dinosaurs. Its delicate tube feet offer a remarkable new window into how some of Earth’s earliest reef animals lived, fed, and evolved.
21/08/2026 sciencedaily
Fossil of Small Duck-Billed Dinosaur Relative Found in Japan
Fossil of Small Duck-Billed Dinosaur Relative Found in Japan
bone Japan Cretaceous fossil Canardia Dinosauria Iguanodontia
A fossilized bone unearthed two decades ago in northeastern Japan belongs to one of the smallest iguanodontian dinosaurs ever found in the country’s Cretaceous marine rocks, according to new research led by the University of Tsukuba. The post Fossil of Small Duck-Billed Dinosaur Relative Found in Japan appeared first on Sci.News: Breaking Science News.
20/08/2026 sci-news
Scientists say the human family tree may need a major rewrite
fossil
The human family tree may be due for a major rewrite. Researchers argue that Australopithecus and Paranthropus should be folded into the genus Homo because new fossils have blurred many of the traits once used to separate them. The proposed shake-up could provide a simpler, more accurate picture of our surprisingly complicated evolutionary past.
20/08/2026 sciencedaily-paleo
This 23-foot crocodylian may have ruled South America’s food chain
hunting predator prey Miocene fossil mammals
Miocene South America was packed with giant prey—and the predators hunting them were just as spectacular. Fossil bite marks suggest crocodylians, especially the enormous Purussaurus neivensis, were more important predators than mammals in this ancient tropical ecosystem. At around seven meters long, Purussaurus may even have helped control populations of giant herbivores.
19/08/2026 sciencedaily-paleo
Episode 177: Cambrian Fecal Revolution
Cambrian fossil evolution
The Cambrian Explosion is one of the most significant events in evolutionary history. Classically, it describes the sudden appearance of complex fossils (including all major animal groups) at the beginning of the Cambrian Period. Before then it was thought that only relatively simple single-celled or multicellular life existed. We now understand this event to be [&hellip
17/08/2026 palaeocast
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