1 best mamenchisauridae dinosaurs

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Mamenchisauridae were sauropods known for having the longest necks among all dinosaurs. Mamenchisauridae were a family of sauropod dinosaurs from the Late Jurassic period, particularly notable for their extremely long necks - the longest proportionally of any known dinosaur. These massive herbivores had necks that could reach up to half of their total body length, allowing them to reach vegetation in very tall trees and unique feeding niches.
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