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Reijenga & Close (2025) study the fossil record of Phanerozoic marine animals, and argue that purported evidence of a relationship between the duration of studied clades and their rates of origination and extinction can be explained by incomplete fossil sampling. [46] Maletz et al. (2025) revise Paleozoic fossils with similarities to feathers ...
Xu & Barrett (2025) review the research on the evolutionary history of feathers from the preceding years. [71] Brown et al. (2025) describe a cervical vertebra of a juvenile specimen of Cryodrakon boreas from the Dinosaur Park Formation (Alberta, Canada), preserved with a bite mark interpreted as likely produced by a crocodilian. [72]
The Late Jurassic of North America, however, is the exact opposite of the Middle Jurassic. The Late Jurassic Morrison Formation is found in several U.S. states, including Colorado, Utah, Wyoming, Montana, New Mexico, Oklahoma, South Dakota, and Texas. It is notable as being the most fertile single source of dinosaur fossils in the world.
February 12, 2025 at 8:09 AM. By Will Dunham ... based on other fossils found in the area. The 19th century discovery of Archaeopteryx, now known from about a dozen specimens, lent support to ...
Three dinosaur fossils from the Jurassic period will go under the hammer at a London auction on Thursday, with price estimates of millions of dollars. Christie's is offering the skeletons of an ...
Only two non-avian dinosaur fossils have been found in Oregon, and both are isolated bones in marine rocks, which evidently bloated and floated out to sea. One is the pedal phalanx of a large (5 m long) ornithopod , intermediate in size and morphology between Tenontosaurus and Eolambia , from the Early Cretaceous ( Albian ) Hudspeth Shale near ...
Bae said that his analysis suggested that the Dragon Man skull is a better match with fossils found at Chinese sites in Dali in Shaanxi province in and Jinniushan, Liaoning province in 1978 and ...
Fossil of the Early Cretaceous-Eocene shark Cretolamna †Cretalamna †Cretalamna appendiculata †Cretodus †Cretodus borodini; Cucullaea †Cucullaea capax †Cucullaea littlei †Cucullaea powersi †Cuna †Cuna texana †Cuspidaria †Cuspidaria ampulla †Cyclorisma †Cyclorisma parva; Cylichna †Cymbophora †Cymbophora appressa ...