Tsintaosaurini (lat.) Is a tribe of herbivorous dinosaurs from the subfamily of the lambeosaurins of the hadrosaurid family from the Upper Cretaceous era (about 83.6–66.0 million years ago) in Asia and Europe . The tribe was introduced in 2013 by Prieto Marquez and colleagues. Tsintaosaurini are defined as a clade of lambaeosauric hadrosaurids, consisting of Tsintaosaurus spinorhinus and Pararhabdodon isonensis [1] .
| † Tsintaosaurini |
Reconstruction of the type genus Tsintaosaurus |
| Scientific classification |
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| No rank : | Bilateral symmetrical |
| Infraclass : | Archosauromorphs |
| No rank : | Archosauriformes |
| Infrastructure : | † Ornithopods |
| Parvotryad : | † Iguanodonts |
| Superfamily : | † Hadrosavroids |
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| International scientific name |
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Tsintaosaurini Prieto-Marquez et al. , 2013 |
| Childbirth |
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- Pararhabdodon
- Tsintaosaurus typus
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Geochronology83.6–66.0 Ma | million years | Period | Era | Aeon |
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| 2,588 | Even | | | Ka | F
but
n
e
R
about
s
about
th | | 23.03 | Neogene | | 66.0 | Paleogen | | 145.5 | a piece of chalk | M
e
s
about
s
about
th | | 199.6 | Yura | | 251 | Triassic | | 299 | Permian | P
but
l
e
about
s
about
th | | 359.2 | Carbon | | 416 | Devonian | | 443.7 | Silur | | 488.3 | Ordovician | | 542 | Cambrian | | 4570 | Precambrian |
◄ Nowadays◄ Cretaceous-Paleogene extinction◄ Triassic extinction◄ Mass Permian Extinction◄ Devonian extinction◄ Ordovician-Silurian extinction◄ Cambrian explosion |
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Reconstruction of Tsintaosaurini representative -
PararhabdodonDiagnosis: Tsintaosaurini is a lambeosauric hadrosaurid that has a jawbone with a high articular surface for articulation with the zygomatic bone such that the ectopterygoid crest does not come into contact with the articular surface of the zygomatic bone; the jawbone has an acute bend between the zygomatic facet and the ectopterygoid protrusion, resulting from the continuation of the ectopterygoid ridge to the rising edge, which bends dorsocaudally [1] .
New
Tsintaosaurus Crest Reconstruction
According to the results of phylogenetic analysis using 265 characters (179 cranial and 86 postcranial) for 34 taxa (22 lamboseosaurins, 2 saurophofins and external taxa), the following cladogram was constructed [1] :
| Lambeosaurinae | | Aralosaurini | |
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| Jaxartosaurus |
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| | Tsintaosaurini |
| Tsintaosaurus |
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| Pararhabdodon |
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| | Parasaurolophini |
| Charonosaurus |
| | Parasaurolophus |
| Parasaurolophus cyrtocristatus |
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| Parasaurolophus tubicen |
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| Parasaurolophus walkeri |
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| | Lambeosaurini | | Lambeosaurus |
| Lambeosaurus lambei |
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| Lambeosaurus magnicristatus |
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| | Corythosaurus |
| Corythosaurus casuarius |
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| Corythosaurus intermedius |
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| "Hypacrosaurus" stebingeri |
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