A member of an extinct group of long-bodied marine reptiles from the Mesozoic era, similar to mosasaurs but more slender.
From Greek 'dolichOS' (long) and 'saura' (lizard), a paleontological term describing these ancient sea creatures' characteristic elongated bodies.
Dolichosaurs ruled ancient oceans for millions of years, reaching lengths of 30 feet, but went extinct alongside dinosaurs—yet their streamlined design still influences how we engineer submarines and underwater vehicles.
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