Primitive Diplodocoids are not members of the group Diplodocidae, the tall-spined Dicraeosauridae, or the wide-snouted Rebbachisauridae.

Time PeriodEdit

They lived from the middle Jurassic to the early Creataceous.

Common MembersEdit

Common members include Amazonsaurus , Amphicoelias , Cetiosauriscus , Dinheirosaurus , Dyslocosaurus , Dystrophaeus , Losillasaurus , and Zapalasaurus .

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