The Jurassic period is a major unit of the geologic timescale that extends from about 200 Ma (million years ago) at the end of the Triassic to 146 Ma at the beginning of the Cretaceous.
Dec. 16, 2022 —Climate change, rather than competition, played a key role in the ascendancy of dinosaurs through the Late Triassic and Early Jurassic ...
Mar. 3, 2022 —Relatively small, but fearsome-looking stegosaur measured about 2.8 meters (9 feet) from nose to tail -- but scientists can't tell whether the remains are those of an adult or ...
Mar. 21, 2022 —New research has revealed that soil erosion and wildfires contributed to a mass extinction event 201 million years ago that ended the Triassic era and paved the way for the rise of dinosaurs in the ...
June 27, 2023 —Scientists have filled a major gap in the state's fossil record -- describing the first known Jurassic vertebrate fossils in Texas. The weathered bone fragments are from the limbs and backbone ...
Apr. 1, 2022 —地质学家们提供了重要的新证据the timing of volcanic activity in the Karoo province, the largest of the Jurassic magma systems. The remnants of the province are widespread in ...
Nov. 7, 2022 —A new study by geobiologists traces the cause of the first known mass extinction of animals to decreased global oxygen availability, leading to the loss of a majority of animals present near the end ...
May 31, 2023 —Geneticists have unearthed a major event in the ancient history of sturgeons and paddlefish that has significant implications for the way we understand evolution. They have pinpointed a previously ...
Aug. 23, 2023 —Researchers have discovered the fossils of two new abelisaurs in Morocco, showing the diversity of dinosaurs in this region at the end of the Cretaceous ...
Aug. 18, 2023 —A new study has demonstrated that the atlatl (i.e. spear thrower) functions as an 'equalizer', a finding which supports women's potential active role as prehistoric ...
Aug. 16, 2023 —A research team has used advanced sequencing technology to analyze Ötzi's genome to obtain a more accurate picture of the Iceman's appearance and genetic ...
Aug. 14, 2023 —Recent paleogenomic research revealed that interbreeding was common among early human species. However, little was known about when, where, and how often this hominin interbreeding took place. Using paleoanthropological evidence, genetic data, and ...
Aug. 23, 2023 —New research suggests that natural selection, famous for rewarding advantageous differences in organisms, can also preserve similarities. The ...
Aug. 23, 2023 —The near extinction of the North American bison in the late 1800s caused a devastating, lasting economic shock to Indigenous peoples whose lives depended on the animals, an economic study ...
Aug. 23, 2023 —Regulatory genes -- genes that control how other genes are used -- are responsible for 69% of the heritability of dairy cattle traits such as milk ...
Aug. 22, 2023 —Researchers have analyzed the genomes of skeletons from an extended family from a Bronze Age necropolis in the Russian steppe. The 3,800-year-old ...
Aug. 21, 2023 —When a sabertooth tiger called out, what noise did it make -- a mighty roar or a throaty purr? A new study examined the data behind the arguments for each vocalization and found that the answer was ...
Aug. 18, 2023 —Archaeologists have long been drawing conclusions about how ancient tools were used by the people who crafted them based on written records and ...
Aug. 17, 2023 —An extremely rare collection of 160-million-year-old sea spider fossils from Southern France are closely related to living species, unlike older fossils of their ...