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Sail-Backed Dinosaur Istiorachis Macarthurae Described from Isle of Wight Fossils

Researchers interpret the elongated dorsal spines as a display structure rather than a heat regulator.

New Sail-Backed Dinosaur From Isle of Wight Identified as Istiorachis macarthurae

Mammoth Cave Yields Fifth New Shark Species: Macadens olsoni

Denver Museum Unveils 67.5-Million-Year-Old Dinosaur Vertebra Found 763 Feet Underground

New Armored Lizard Species Identified From 77-Million-Year-Old Utah Fossils

506-Million-Year-Old Predator Mosura fentoni Unveiled from Canada's Burgess Shale

16-Million-Year-Old Fossil Unveils Caribbean History of Basiceros Dirt Ants

Study Reveals Crocodilian Ancestors Survived Mass Extinctions Through Dietary Flexibility

Fossil of 69-Million-Year-Old Bird Redefines Evolutionary History

Ancient Bird Fossil Sheds Light on Evolution of Avian Brains