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Opisthocoelicaudia /ɒˌpɪsθoʊsɪlɪˈkɔːdiə/ is a
genus of
sauropod dinosaur of the Late
Cretaceous Period discovered in the Gobi
Desert of Mongolia. The type...
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which possess flattened centra.
Although differing in
centrum shape,
Opisthocoelicaudia and
Diamantinasaurus are the only
titanosaurs to
share a
ventral keel...
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Argentinosaurus to only two ridges, and is
fully absent in taxa like
Opisthocoelicaudia and Saltasaurus. Both
Argentinosaurus and
Epachthosaurus bear similar...
- not
Opisthocoelicaudia. The same
paleontologists defined Opisthocoelicaudiinae as the inverse: the least-inclusive
clade containing Opisthocoelicaudia but...
- each
sternal plate that was
oriented similarly to
Dreadnoughtus and
Opisthocoelicaudia. The
humerus of
Patagotitan was on
average 28% as
broad as it was...
- the
headless skeleton of
Opisthocoelicaudia,
McIntosh (1990) kept
Nemegtosaurus in
Diplodocoidea while keeping Opisthocoelicaudia separate from the former...
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these characteristics indicate that it was
likely closely related to
Opisthocoelicaudia. However, it
differs from the
latter by the
flatter bottom articulating...
- it with Saltasauridae. One
major analysis unites Alamosaurus with
Opisthocoelicaudia in the
subgroup Opisthocoelicaudiinae of Saltasauridae. A
major competing...
- 28–47 m (92–154 ft)
based on more
complete titanosaurs (Saltasaurus,
Opisthocoelicaudia and Rapetosaurus), and
declined to
provide a new
weight estimate,...
- small-to-medium sized; additionally, Diamantinasaurus, Epachthosaurus, and
Opisthocoelicaudia approached the size of Igai. Igai was
entered into a phylogenetic...
