Nigersaurus (meaning "Niger lizard") is a genus of diplodocoid sauropod dinosaur from the middle Cretaceous period, about 119 to 99 million years ago during the Aptian or Albian age. This dinosaur was described by Paul Sereno and colleagues in 1999. It is one of the most common genera found in the rich fossil vertebrate fauna of the Elrhaz Formation, Gadoufaoua, in the Niger Republic, discovered by Philippe Taquet, and described in a paper published in 1976. Nigersaurus was a plant-eater that had an unusual mouth "shaped like the wide intake slot of a vacuum" that took in food and chewed it with over a hundred very small, sharp teeth. Previously, such tooth batteries have been known only in hadrosaur and ceratopsian dinosaurs, but the discovery of Nigersaurus showed that at least one sauropod lineage, the rebbachisaurids, had them, as well.

Patagosaurus ("Patagonian lizard") was a large herbivorous dinosaur from the long-necked group Sauropoda. It reached the length of 18 meters. Similar to other primitive eusauropods, it was rather heavily build and similar to Cetiosaurus in general appearance. It is known from a dozen individuals, though some referred material may belong to another related dinosaur genus. It lived during the Callovian of the Middle Jurassic (163-161 mya) in what is now called Argentina. Other Argentinian dinosaurs living approximately at the same time were Piatnitzkysaurus, Condorraptor and Amygdalodon.

Pelorosaurus ("Monstrous lizard") was a huge plant-eating dinosaur. Pelorosaurus was one of the first sauropod dinosaurs ever discovered. Pelorosaurus lived during the Early Cretaceous period, about 138-112 million years ago. Fossils have been found in England and Portugal. It was about fifty feet long. It is known from a humerus, vertebrae, a sacrum, pelvis and limb fragments, as well as from skin impressions; it was covered in hexagonal scales.

Plateosaurus ("Flat lizard") is a genus of plateosaurid prosauropod dinosaur that lived during the Late Triassic period, around 216 to 199 million years ago in what is now Europe. Plateosaurus was the largest known dinosaur of its time, reaching 6 to 10 metres (20 to 33 ft) in length and up to an estimated 700 kilograms (1,500 lb) in mass. A member of the group of early herbivores known as prosauropods, it was more powerfully built than that of similar animals such as Anchisaurus. Plateosaurus had a long neck, composed of around nine cervical vertebrae, a stocky body and a pear-shaped torso.

Rhoetosaurus, ("Rhoetos lizard"), named after Rhoetus, a Titan in Greek Mythology, is a genus of sauropod dinosaur from the Jurassic (Middle Jurassic?) of what is now eastern Australia. Rhoetosaurus is estimated to have been about 12-15 metres long. Along with Austrosaurus, Rhoetosaurus is among the two best-known sauropods thus far discovered in Australia, as well as for the Jurassic of Gondwana. Rhoetosaurus is presently the most complete Australian sauropod.

Saltasaurus ("Lizard from Salta") is a genus of sauropod dinosaur of the Late Cretaceous Period. Relatively small among sauropods, though still massive by human standards, it was characterized by a diplodocid-like head (with blunt teeth, only in the back of the mouth) and was the first discovered with small bony plates embedded in its skin. The bony plates (a form of armour called osteoderms) have since been found in other titanosaurids, and a crest of scutes has also been discovered, running down the back of diplodocids. When the plates of a saltasaur were originally found, independently of skeletal remains, they were assumed to be from an ankylosaurian, whose plates they resemble.

First described in 1991 by Gillette as Seismosaurus halli from a partial skeleton comprising vertebrae, pelvis and ribs. In 2004, a presentation at the annual conference of the Geological Society of America made a case for Seismosaurus being a junior synonym of Diplodocus. This was followed by a much more detailed publication in 2006, which not only renamed the species Diplodocus hallorum, but also speculated that it could prove to be the same as D. longus. The position that D. hallorum should be regarded as a specimen of D. longus was also taken by the authors of a redescription of Supersaurus, refuting a previous hypothesis that Seismosaurus and Supersaurus were the same.

Shunosaurus, ("Shu Lizard"), is a genus of sauropod dinosaur from Middle Jurassic beds in Sichuan Province in China, 170 million years ago. The name derives from "Shu", an ancient name for Sichuan. It was collected from the Lower Shaximiao Formation in Dashanpu, Zigong. At around 10 metres long, Shunosaurus was fairly short-necked (for a sauropod) and had a short deep skull, with fairly robust spatulate teeth. In 1989 its tail was found to have ended in a club, probably used for fending off enemies. Shunosaurus is classified as a basal eusauropod and is related to Rhoetosaurus from Queensland in Australia.

Supersaurus ("Super lizard") is a genus of diplodocid sauropod dinosaur discovered in the Upper Jurassic Morrison Formation of Colorado in 1972. It is among the largest dinosaurs known from good remains, possibly reaching 33 to 34 meters (108 to 112 ft) in length, and a weight of 35 to 40 tons.

Titanosaurus ("Titanic reptile"), a genus of sauropod dinosaur, was 9-12 metres (30-40 ft) long and weighed about 13 tons. Titanosaurus has traditionally been treated as a "wastebin taxon" for poorly preserved sauropod remains that demonstrate a distinctive vertebrae anatomy. The original Titanosaurus remains consist only of limb bones and a few vertebrae that have these characteristics. However, discoveries of more and better-preserved titanosaur species have shown that these once distinctive features are in fact widespread across many genera. Therefore, Titanosaurus itself is considered a nomen dubium ("dubious name") by most paleontologists, since the original Titanosaurus specimens cannot be distinguished from those of related animals.