Temporal range: Late Triassic? or Late Jurassic? ?214–145 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Age unknown
Isanosaurus attavipachi thigh bone
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
Saurischia
Clade:
†Sauropodomorpha
Clade:
†Sauropoda
Genus:
†Isanosaurus Buffetaut et al. 2000
Species:
†I. attavipachi
Binomial name
†Isanosaurus attavipachi
Buffetaut et al. 2000
Isanosaurus ("North-eastern thailand lizard") is an extinct genus of sauropod dinosaur from Thailand. It was originally dated to approximately 210 million years ago during the Late Triassic (late Norian to Rhaetian stages), which would make it one of the oldest known sauropods. Its age was later considered uncertain, and may be Early Jurassic[1] or even as young as Late Jurassic.[2] The only species is Isanosaurus attavipachi. Though important for the understanding of sauropod origin and early evolution, Isanosaurus is poorly known. Exact relationships to other early sauropods remain unresolved.[3]
^Cite error: The named reference Rauhut2020 was invoked but never defined (see the help page).
^Cite error: The named reference peyre2020 was invoked but never defined (see the help page).
^Cite error: The named reference buffetaut2000 was invoked but never defined (see the help page).
only species is Isanosaurus attavipachi. Though important for the understanding of sauropod origin and early evolution, Isanosaurus is poorly known....
known unequivocal sauropod dinosaurs are known from the Early Jurassic. Isanosaurus and Antetonitrus were originally described as Triassic sauropods, but...
fore limbs and shoulders, and fragments from the hip, foot, and dentary Isanosaurus attavipachi CH4 Fossil collection of the Department of Mineral Resources...
sauropod, occupying a position between more derived animals such as Isanosaurus or Vulcanodon, and more basal sauropods like Melanorosaurus. The back...
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