Primitive Sauropods are not members of either the whip-tailed Diplodocoids or the big-nosed Macronarians.
Time Period[]
They lived from the late Triassic to the late Cretaceous.
Common Members[]
Common members include Aepisaurus, Algoasaurus, Amygdalodon, Antetonitrus, Archaeodontosaurus, Asiatosaurus, Barapasaurus, Blikanasaurus, Campylodoniscus, Cardiodon, Cetiosaurus, Chebsaurus, Chinshakiangosaurus, Chuanjiesaurus, Datousaurus, Euhelopus, Ferganasaurus, Galveosaurus, Gongxianosaurus, Hudiesaurus, Isanosaurus, Jiutaisaurus, Klamelisaurus, Kotasaurus, Lourinhasaurus, Mamenchisaurus, Ohmdenosaurus, Omeisaurus, Oplosaurus, Patagosaurus, Protognathosaurus, Pukyongosaurus, Qinlingosaurus, Rhoetosaurus, Shunosaurus, Tazoudasaurus, Tehuelchesaurus, Tendaguria, Tienshanosaurus, Volkheimeria, Vulcanodon, Yuanmosaurus, Zigongosaurus, and Zizhongosaurus.