Temporal range: Late Triassic (Carnian),[1]231–228 Ma
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O
S
D
C
P
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Reconstructed skeleton, Royal Ontario Museum
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
Saurischia
Clade:
†Sauropodomorpha
Genus:
†Eoraptor Sereno et al. 1993
Species:
†E. lunensis
Binomial name
†Eoraptor lunensis
Sereno et al. 1993
Eoraptor (/ˈiːoʊˌræptər/) is a genus of small, lightly built, basal sauropodomorph dinosaur. One of the earliest-known dinosaurs and one of the earliest members of the sauropod family, it lived approximately 231 to 228 million years ago,[1] during the Late Triassic in Western Gondwana, in the region that is now northwestern Argentina. The type and only species, Eoraptor lunensis, was first described in 1993, and is known from an almost complete and well-preserved skeleton and several fragmentary ones. Eoraptor had multiple tooth shapes, which suggests that it was omnivorous. Eoraptor was 1.5 feet (0.46 m) tall and 3 feet (0.91 m) long.
^ abAlcober, Oscar A.; Martinez, Ricardo N. (2010). "A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina". ZooKeys (63): 55–81. doi:10.3897/zookeys.63.550. PMC 3088398. PMID 21594020. [1]
Eoraptor (/ˈiːoʊˌræptər/) is a genus of small, lightly built, basal sauropodomorph dinosaur. One of the earliest-known dinosaurs and one of the earliest...
age of the Late Triassic according to the ICS). Some studies have found Eoraptor lunensis (also from the Ischigualasto Formation), traditionally considered...
city of San Juan, Argentina in 1959. These rocks, which later yielded Eoraptor, are part of the Ischigualasto Formation and date from the late Carnian...
argued to be one of the oldest true theropods, supplanting its contemporary Eoraptor, which was reinterpreted as a basal sauropodomorph. Fossils from Eodromaeus...
the spacing and shape of the teeth strongly resemble those of Eoraptor. As in Eoraptor, a gap separates the teeth of the premaxillary and the maxillary...
dated at 231-230 million years old) has produced the early saurischian Eoraptor, originally considered a member of the Herrerasauridae but now considered...
Late Triassic, including Plateosaurus, Coelophysis, Herrerasaurus, and Eoraptor. The Triassic–Jurassic extinction event began during this epoch and is...
Ornithomimus / Angela Avisaurus (One Small Dinosaur/T. Rex Migration) / Erma Eoraptor Barbie in A Mermaid Tale (2010) – Eris / Snouts Care Bears to the Rescue...
Quadrupedal archosaurs are not a paraphyletic group. Bipedal dinosaurs like Eoraptor, ancestral to quadrupedal ones, were descendants of the last common ancestor...
scapular blade. Yet the fossils also exhibited similar features to those of Eoraptor, an early omnivorous sauropodomorph, including hollow bones, sublanceolate...
(Argentina), including early dinosaurs Chromogisaurus novasi, Eodromaeus murphi, Eoraptor lunensis, Herrerasaurus ischigualastensis and Sanjuansaurus gordilloi,...
no saisentan [New dinosaur book: The front-lines of dinosaurology, from Eoraptor as the earliest dinosaur to Sapient dinosaurs] (in Japanese). Tokyo: Hayakawashobō...
of implied weighting, placed it as the sister taxon to Eoraptor, with the Buriolestes+Eoraptor clade sister to a clade connecting Panphagia and Pampadromaeus...
Middle Triassic-Early Jurassic, although the first true dinosaurs, such as Eoraptor, did not exist until the Late Triassic. The type ichnospecies, I. zerabensis...
a rapid increase of bauplan size, although more primitive members like Eoraptor, Panphagia, Pantydraco, Saturnalia and Guaibasaurus still retained a moderate...
such as those from the Ischigualato Formation (e.g. Herrerasaurus and Eoraptor) and those from the Santa Maria Formation (e.g. Staurikosaurus and Buriolestes)...
the early dinosaur genus Eoraptor establishes its presence in the fossil record at this time. Paleontologists suspect Eoraptor resembles the common ancestor...
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