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☆ Fossils reveal head of the world’s largest known arthropod, study says
▼ + stars: | 2024-10-18 | by ( Ashley Strickland | ) edition.cnn.com time to read: +9 min

In a quest to find the first complete head, researchers conducted an analysis of Arthropleura fossils belonging to two juvenile individuals uncovered in the 1970s in France. Researchers studied scans of two Arthropleura fossils trapped in stone. Both fossilized insects still had most of their legs, and one of them had a complete head, including antennae, eyes, mandibles and its feeding apparatus — the first Arthropleura head ever documented, Lhéritier said. Researchers believe the two Arthropleura fossils belonged to juveniles because they reach just 0.9 inch (25 millimeters) and 1.5 inches (40 millimeters) long. But other fossils that preserve additional aspects of the arthropod’s body, including the head of an adult, will need to be found.

Persons: —, Arthropleura, we’ve, ”, Dr, Greg Edgecombe, Mickaël Lhéritier, Lhéritier, ” Edgecombe, Arthrorpleura, Lheritier, ” Lhéritier, “, James C, Lamsdell Organizations: CNN, Adv, Claude Bernard University Lyon, Mines, West Virginia University Locations: France, Great Britain, eadp6362, what’s, North America, Europe, Montceau, millipedes

☆ Ancient swimming sea bug ‘taco’ had mandibles, new fossils show
▼ + stars: | 2024-07-30 | by ( Mindy Weisberger | ) edition.cnn.com time to read: +6 min

Newfound fossils of the extinct arthropod Odaraia alata recently provided scientists with a first glimpse of Odaraia’s jawlike structures, called mandibles. He conducted the research at the Royal Ontario Museum while pursuing a doctoral degree in the University of Toronto’s department of ecology and evolutionary biology. For the new investigation, the researchers examined around 150 fossils collected by Royal Ontario Museum during expeditions between 1975 and 2000. The carapace folded over Odaraia’s limbs, so it may have been unable to walk on the seafloor, according to the Royal Ontario Museum. More mandibulate mysteriesOne feature that puzzled and intrigued the scientists had never been seen before in Cambrian animals: a single toothlike structure between Odaraia’s mandibles.

Persons: Odaraia, Alejandro Izquierdo, López, ”, “, Jean, Bernard Caron, Joanna Wolfe, ” Wolfe, Wolfe, ” Mindy Weisberger Organizations: CNN, Royal Ontario Museum, Royal Society, Biological Sciences, University of Toronto’s, Harvard University, “, Scientific Locations: Burgess, British Columbia, Canada, centipedes

☆ Ancient trilobite anatomy preserved in 3D by volcanic eruption, study finds
▼ + stars: | 2024-07-09 | by ( Mindy Weisberger | ) edition.cnn.com time to read: +8 min

Greg Edgecombe“It’s just incredible to have this in 3D without any alteration or deformation,” lead study author Dr. Abderrazak El Albani told CNN. The findings also underscore the urgency of protecting fossil-rich locations in Africa such as the Tatelt Formation, El Albani added. Such protections help to ensure that buried remnants of Earth’s distant past remain accessible for future study, El Albani said. Microtomographic reconstruction shows the newfound trilobite species Gigoutella mauretanica found in the Tatelt Formation in the High Atlas mountains. This example of commensalism — different types of animals living together — is also exceedingly rare in the trilobite fossil record, El Albani said.

Persons: Greg Edgecombe, Greg Edgecombe “, Abderrazak El Albani, Arnaud Mazurier, Matériaux de, El Albani, mauretanica, Melanie Hopkins, ”, Hopkins, “, ” Mindy Weisberger Organizations: CNN, Chimie, Matériaux de Poitiers, University of Poitiers, geoscience, UNESCO, Heritage, University, Poitiers, American Museum of, Scientific Locations: what’s, Morocco, Vesuvius, London, France, Africa, Burgess, Canada, New York City, Morocco —

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