Reconstructed skeleton on display at the Field Museum of Natural History, Chicago, Illinois, U.S.
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
Saurischia
Clade:
†Sauropodomorpha
Clade:
†Sauropoda
Clade:
†Macronaria
Clade:
†Titanosauria
Clade:
†Lognkosauria
Genus:
†Patagotitan Carballido et al., 2017
Type species
†Patagotitan mayorum
Carballido et al., 2017
Patagotitan is a genus of titanosaurian sauropod dinosaur from the Cerro Barcino Formation in Chubut Province, Patagonia, Argentina. The genus contains a single species known from at least six young adult individuals, Patagotitan mayorum, which was first announced in 2014 and then named in 2017 by José Carballido and colleagues. Preliminary studies and press releases suggested that Patagotitan was the largest known titanosaur and land animal overall, with an estimated length of 37 m (121 ft) and an estimated weight of 69 tonnes (76 short tons). Later research revised the length estimate down to 31 m (102 ft) and weight estimates down to approximately 50–57 tonnes (55–63 short tons), suggesting that Patagotitan was of a similar size to, if not smaller than, its closest relatives Argentinosaurus and Puertasaurus. Still, Patagotitan is one of the most-known titanosaurs, and so its interrelationships with other titanosaurs have been relatively consistent in phylogenetic analyses. This led to its use in a re-definition of the group Colossosauria by Carballido and colleagues in 2022.
Like Argentinosaurus and other members of the Lognkosauria, Patagotitan was a particularly large and robust titanosaur. It can be distinguished from its close relatives by a suite of unique characteristics in its back and tail vertebrae, scapulae and humeri in the forelimb, and ischia and femora in the hindlimb. Among these was the presence of accessory vertebral articulations known as the hyposphene-hypantrum articulations between only one pair of vertebrae at the level of the scapular blade, which was likely a weight-bearing adaptation not seen in any other sauropod (where they were either present between all pairs or between none). Several unique features in the limbs were also likely attachment scars for muscles. In life, Patagotitan lived in a forested region on a floodplain that was dominated by coniferous trees.
Patagotitan is a genus of titanosaurian sauropod dinosaur from the Cerro Barcino Formation in Chubut Province, Patagonia, Argentina. The genus contains...
whereas the width of the distal femur appears to slightly exceed that of Patagotitan. Paul estimated its mass at around 30–55 t (33–61 short tons), much lower...
since been suggested that Patagotitan was not necessarily larger than Argentinosaurus and Puertasaurus. In 2019, Patagotitan was estimated to have been...
Carballido and colleagues considered Argentinosaurus to be smaller than Patagotitan, since the latter had a greater area enclosed by the neural spine, diapophyses...
some of the largest land animals known to have ever existed, such as Patagotitan—estimated at 37 m (121 ft) long with a weight of 69 tonnes (76 tons)—and...
colleagues redefined the group in 2022 to include the smallest clade of both Patagotitan, a colossosaur, and Saltasaurus, creating a node-stem clade with Colossosauria...
History in 1907. The longest dinosaur known from good fossil material is Patagotitan: the skeleton mount in the American Museum of Natural History in New...
than Patagotitan, a more complete giant sauropod. In 2019, Gregory S. Paul estimated the mass of Puertasaurus to be in the size range of Patagotitan at...
110–170 tons, with the highest estimate being 240 tons, if scaled with Patagotitan, although actual fossil remains no longer exist, and that estimation...
110–170 tons, with the highest estimate being 240 tons, if scaled with Patagotitan, although actual fossil remains no longer exist, and that estimation...
have ever existed on Earth, such as Argentinosaurus, Brachiosaurus, and Patagotitan. The clade "sauropodomorpha" was created based on the earlier-named and...
José L.; Pérez Moreno, Agustín (2020). "The appendicular osteology of Patagotitan mayorum (Dinosauria, Sauropoda)". Journal of Vertebrate Paleontology...
Carballido gave it the definition of all taxa closer to Saltasaurus than Patagotitan, encompassing half of Eutitanosauria as the sister taxon to the inversely...
lengths of 30–33 m (98–108 ft) and weights of 50–80 t (55–88 short tons). Patagotitan was estimated at 37 m (121 ft) in length and 57 t (63 short tons) in...
Ultimately the largest sauropods, like Supersaurus, Diplodocus hallorum, Patagotitan, and Argentinosaurus, reached 30–40 metres (98–131 ft) in length, and...
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