Zapalasaurus picture
Primitive diplodocoids are not members of the group Diplodocidae, the tall-spined Dicraeosauridae, or the wide-snouted Rebbachisauridae.
Time Period[]
They lived from the middle Jurassic to the early Cretaceous.
Common Members[]
Common members include Amazonsaurus, Amphicoelias, Cetiosauriscus, Dinheirosaurus, Dyslocosaurus, Dystrophaeus Viaemalae, Losillasaurus, and Zapalasaurus.