Long-held theory of vertebrate evolution upended
A team has found some baby lamprey fossils in multiple stages of life that upend our previous ideas about their evolution and development.
Stay updated with breaking news from Plate Devonian. Get real-time updates on events, politics, business, and more. Visit us for reliable news and exclusive interviews.
A team has found some baby lamprey fossils in multiple stages of life that upend our previous ideas about their evolution and development.
E-Mail IMAGE: Artist's reconstruction showing the life stages of the fossil lamprey Priscomyzon riniensis. It lived around 360 million years ago in a coastal lagoon in what is now South Africa. Clockwise... view more Credit: Kristen Tietjen Ottawa, March 10, 2021 - A new study of fossilized lampreys dating from more than 300 million years ago is challenging a long-held theory about the evolutionary origin of vertebrates (all animals with a backbone). The findings are published March 10 in the science journal Nature. Lampreys are ancient, jawless, eel-like fishes that arose around...
8 MARCH 2021 More and more, it seems that the existence and persistence of life on Earth is the result of sheer luck. According to a new analysis of the history of the Milky Way, the best time and place for the emergence of life isn't here, or now, but over 6 billion years ago on the galaxy's outskirts. That specific location in space and time would have afforded a habitable world the best protection against the gamma-ray bursts and supernovae that blasted space with deadly radiation. As of about 4 billion years ago, the central regions of the galaxy (which include the Solar System) becam...
Faculty-student biology research team publishes findings in Palaois A team of paleontology researchers led by Lycoming College has discovered a well-exposed section of the Catskill Formation in North-Central Pennsylvania that contains abundant macrofossils and sedimentary features that make it well-suited for Upper Devonian fossil occurrences. Their research, entitled, “Vertebrate Taphonomy, Paleontology, Sedimentology, and Palynology of a Fossiliferous Late Devonian Fluvial Succession, Catskill Formation, North-Central Pennsylvania, USA” was published in the December issue of Palaios, ...
Loading video... VIDEO: Virtual skeleton of the early tetrapod Pederpes from micro-CT scanned fossil and musculoskeletal reconstruction of its forelimb. view more Credit: Copyright 2021, Julia Molnar. When tetrapods (four-limbed vertebrates) began to move from water to land roughly 390 million years ago it set in motion the rise of lizards, birds, mammals, and all land animals that exist today, including humans and some aquatic vertebrates such as whales and dolphins. The earliest tetrapods originated from their fish ancestors in the Devonian period and are more than twice as old as t...