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Fossils

Gypsum’s crystalline facies and sample handling. Images of the studied twinned selenite crystal and of the sample preparation and handling for optical microscopy, SEM-EDX, and LIMS analyses. (A) Smal crystal selenite (SC) and decimeter-sized twinned arrow-head selenite (TS) crystals show the darker re-entrant angle of the crystals (dashed black lines). (B) Large petrographic thin section of the re-entrant angle of the twinned selenite crystal marked in the blue rectangle in (A). It shows very turbid (vTL), turbid (TL) and limpid laminations (LL). (C) Small petrographic thin section of turbid laminae fixed on the LIMS sample holder with copper tape. (D) Gold coated sample on the LIMS sample holder.

Laser-powered device tested on Earth could spot microbial fossils on Mars

Artwork of how Bastetodon likely appeared.

Near-complete skull discovery reveals ‘top apex’, leopard-sized “fearsome” carnivore

A, Photo of the tusked animal of the Horned Serpent panel. B, interpretive drawing of its head. C, skull of a Lystrosaurus (14-03-2024, Oviston Nature Reserve) showing the prominent tusks, photographed in situ at the moment of its discovery, before excavation, and unprepared. D, complete skeleton of a Lystrosaurus (BP/1/9100, Oviston Nature Reserve) with its vertebral column curved into an opisthotonic "death pose", ex situ, prepared. E, the ‘mummified’ foot of a Lystrosaurus (28-08-2022, Fairydale, Bethulie District) showing the warty aspect of its preserved skin, ex situ, unprepared.

Ancient Rock Art May Depict Extinct Species, Predating Scientific Discovery

griffin

Dinosaur-Griffin Connection Debunked: New Study Challenges Popular Myth

Reconstruction of the earliest sea-going reptile from the Southern Hemisphere: Nothosaurs swimming along the ancient southern polar coast, now part of New Zealand, around 246 million years ago. Artwork by Stavros Kundromichalis.

Ancient Sea Reptile Fossil Discovered in New Zealand Rewrites Evolutionary History

Artist reconstruction of Musankwa sanyatiensis, walking in Triassic shallow waters past a metoposaur.

New Dinosaur Species Discovered on the Shores of Lake Kariba in Zimbabwe

Artist illustration of Nanotyrannus attacking a juvenile T. rex.

“Juvenile T. rex” fossils are a distinct species of small tyrannosaur

Illustration showing Repenomamus robustus as it attacks Psittacosaurus lujiatunensis moments before a volcanic debris flow buries them both, ca. 125 million years ago.

Unusual fossil shows rare evidence of a mammal attacking a dinosaur

Bone cavities called air sacs appeared in the ancestors of long-necked dinosaurs about 225 million years ago, according to the analysis of a specimen found in Rio Grande do Sul state, South Brazil. The study also shows that air sacs did not evolve as linearly as scientists believe (credit: Márcio L. Castro)

Brazilian fossil provides earliest evidence of evolutionary trait that enabled dinosaurs to become giants

Researchers and volunteers with the Florida Museum of Natural History have discovered the ancient remains of several gomphotheres at a fossil site in North Florida.

Paleontologists discover elephant graveyard in North Florida

Fossils from the Fezouata Shale. From left to right, a non-mineralized arthropod (Marrellomorpha), a palaeoscolecid worm and a trilobites

Giant arthropods dominated the seas 470 million years ago

A Whatcheeria skull in the collections of the Field Museum, with its many sharp teeth visible

Ancient superpredator got big by front-loading its growth in its youth

Artist's impression of an individual 525-million-year-old Cardiodictyon catenulum on the shallow coastal sea floor, emerging from the shelter of a small stromatolite built by photosynthetic bacteria.

525-million-year-old fossil defies textbook explanation for brain evolution

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