Invertebrate paleontology is the scientific discipline within paleontology that investigates the fossil record of animals lacking a vertebral column, including groups such as mollusks, arthropods, echinoderms, cnidarians, and brachiopods. It focuses on the morphology, taxonomy, phylogenetic relationships, and evolutionary patterns of these organisms, using skeletal hard parts (e.g., shells, exoskeletons, ossicles) preserved in sedimentary rocks. Invertebrate paleontologists employ stratigraphic distribution, paleoecological reconstruction, and quantitative methods to infer biodiversity trends, biogeographic patterns, and environmental change through geologic time, and to refine biostratigraphic frameworks critical for correlating and dating sedimentary sequences.
A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of Records—has turned out to be something else altogether. In what amounts to a case of mistaken identity, ...
Evolution
Apr 7, 2026
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Nautilus and Allonautilus cephalopods and their extinct ancestors have been drifting through the mesophotic zone of the ocean for more than 500 million years. Researchers have spent the last 40 years trying to understand ...
Evolution
Apr 5, 2026
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Animal life is extraordinarily diverse and complex, having colonized almost all environments on Earth—from hostile hydrothermal vents in the deep sea to the skies across our continents. But the planet was not always teeming ...
Evolution
Apr 4, 2026
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Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures that took over the world and would eventually ...
Evolution
Apr 4, 2026
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A newly discovered fossil site in southwest China has transformed our understanding of how complex animal life emerged on Earth, revealing that many key animal groups had already evolved before the start of the Cambrian Period. ...
Evolution
Apr 2, 2026
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Butterfly fossils are rare, and finds that preserve fine anatomical details and wing patterns are an absolute exception. An international research team from Sweden, the U.S., and Germany, led by Dr. Hossein Rajaei, lepidopterist ...
Evolution
Apr 1, 2026
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It had been a long day of teaching for Rudy Lerosey-Aubril. As a reward, he returned to cleaning an intriguing Cambrian arthropod fossil he had recently received for review. At first, the specimen showed all the expected ...
Evolution
Apr 1, 2026
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Three-hundred-million years ago, Earth was very different. The continents had coalesced into Pangea, which was dominated in its equatorial regions by vast coal-swamp forests. With high atmospheric oxygen levels, wildfires ...
Plants & Animals
Mar 25, 2026
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Tiny insects trapped in amber could tell us a great deal about their roles in past ecosystems: pollinators, parasites, predators, and prey. But how many of the insects preserved alongside each other reflect interactions during ...
Ecology
Feb 27, 2026
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In a study published in Historical Biology, Dr. Mohammed Naimi and his colleagues report the discovery of the first plesiosaurian remains from Algeria. Additionally, the fossil, dated to the Late Coniacian, is one of only ...
