Lambeosaurinae is a group of crested

hadrosaurid Hadrosaurids (), or duck-billed dinosaurs, are members of the ornithischian family Hadrosauridae. This group is known as the duck-billed dinosaurs for the flat duck-bill appearance of the bones in their snouts. The ornithopod family, which inclu ...

dinosaur Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...

Classification

Lambeosaurines have been traditionally split into the tribes or clades

Parasaurolophini Parasaurolophini is a tribe of derived corythosaurian lambeosaurine hadrosaurids that are native to Asia, and North America. It is defined as everything closer to ''Parasaurolophus walkeri'' than to ''Lambeosaurus lambei''. It currently contain ...

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Parasaurolophus ''Parasaurolophus'' (; meaning "near crested lizard" in reference to '' Saurolophus)'' is a genus of herbivorous hadrosaurid ornithopod dinosaur that lived in what is now North America and possibly Asia during the Late Cretaceous Period, abou ...

'', ''

Charonosaurus ''Charonosaurus'' ( ; meaning " Charon's lizard") is a genus of dinosaur whose fossils were discovered by Godefroit, Zan & Jin in 2000 on the south bank of the Amur River, dividing China from Russia. It is monotypic, consisting of the species ...

'', others (?).) and

Lambeosaurini Lambeosaurini, previously known as Corythosaurini, is one of four tribes of hadrosaurid ornithopods from the family Lambeosaurinae. It is defined as all lambeosaurines closer to ''Lambeosaurus lambei'' than to ''Parasaurolophus walkeri, Tsintaosau ...

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Corythosaurus ''Corythosaurus'' (; ) is a genus of hadrosaurid "duck-billed" dinosaur from the Upper Cretaceous Period (geology), Period, about 77–75.7 million years ago. It lived in what is now North America. Its name means "helmet lizard", derived fr ...

'', ''

Hypacrosaurus ''Hypacrosaurus'' (meaning "near the highest lizard" reek υπο-, ''hypo-'' = less + ακρος, ''akros'', high because it was almost but not quite as large as ''Tyrannosaurus'') was a genus of duckbill dinosaur similar in appearance to ''Co ...

'', ''

Lambeosaurus ''Lambeosaurus'' ( , meaning " Lambe's lizard") is a genus of hadrosaurid dinosaur that lived about 75 million years ago, in the Late Cretaceous period (Campanian stage) of North America. This bipedal/quadrupedal, herbivorous dinosaur is k ...

'', others.). Corythosaurini (synonym of Lambeosaurini, see below) and Parasaurolophini as terms entered the formal literature in Evans and Reisz's 2007 redescription of ''Lambeosaurus magnicristatus''. Corythosaurini was defined as all

taxa In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular nam ...

more closely related to ''Corythosaurus casuarius'' than to ''Parasaurolophus walkeri'', and Parasaurolophini as all those taxa closer to ''P. walkeri'' than to ''C. casuarius''. In this study, ''

'' and ''Parasaurolophus'' are parasaurolophins, and ''Corythosaurus'', ''Hypacrosaurus'', ''Lambeosaurus'', ''

Nipponosaurus ''Nipponosaurus'' (meaning "Japanese lizard") is a lambeosaurine hadrosaur from sediments of the Yezo Group, in Sinegorsk on the island of Sakhalin, which was part of Japan at the time of the species' classification. The type and only species ...

'', and ''

Olorotitan ''Olorotitan'' was a genus of lambeosaurine duckbilled dinosaur from the middle or latest Maastrichtian-age Late Cretaceous, whose remains were found in the Udurchukan Formation beds of Kundur, Amur River Region, Far Eastern Russia. The type, an ...

'' are corythosaurins. However, later researchers pointed out that due to the rules of priority set forth by the

ICZN The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its publisher, the I ...

, Any tribe containing ''Lambeosaurus'' is properly named Lambeosaurini, and that therefore the name "Corythosaurini" is a junior synonym, and the definition had ''Corythosaurus casuarius'' changed to ''Lambeosaurus lambei'', and the same for Parasaurolophini.Sullivan, R., Jasinsky, S.E., Guenther, M. and Lucas, S.G. (2009). "The first lambeosaurin (Dinosauria, Hadrosauridae, Lambeosaurinae) from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico." ''New Mexico Museum of Natural History and Science Bulletin'', 53: 405-417

/ref> In more recent years

Tsintaosaurini Tsintaosaurini is a tribe of basal lambeosaurine hadrosaurs native to Eurasia. It is thought to contains the genera ''Tsintaosaurus'' (from China), ''Pararhabdodon'' (from Spain) and '' Koutalisaurus'' (also from Spain), though some studies have ...

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Tsintaosaurus ''Tsintaosaurus'' (; meaning "Qingdao lizard", after the old transliteration "Tsingtao") is a genus of hadrosaurid dinosaur from China. It was about long and weighed . The type species is ''Tsintaosaurus spinorhinus'', first described by Chine ...

'' + ''

Pararhabdodon ''Pararhabdodon'' (meaning "near fluted tooth" in reference to ''Rhabdodon'') is a genus of tsintaosaurin hadrosaurid dinosaur, from the Maastrichtian-age Upper Cretaceous Tremp Group of Spain. The first remains were discovered from the Sant Rom� ...

'') and

Aralosaurini Aralosaurini is a proposed tribe of hadrosaurid dinosaurs belonging to the subfamily Lambeosaurinae. The members of this group lived in Asia and Europe during the end of the Late Cretaceous about 83.6 to 66.0 million years ago. The clade may not be ...

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Aralosaurus ''Aralosaurus'' was a genus of hadrosaurid dinosaur that lived during the Late Cretaceous in what is now Kazakhstan. It is known only by a posterior half of a skull (devoid of its mandible) and some post-cranial bones found in the Bostobe Formati ...

'' + ''

Canardia ''Canardia'' is an extinct genus of lambeosaurine dinosaur known from the Late Cretaceous Marnes d'Auzas Formation (late Maastrichtian stage) of Haute-Garonne department, in Occitanie region, southwestern France. The type species ''Canardia garon ...

'') have also emerged.

Phylogeny

The following

cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to d ...

was recovered in a 2022 phylogenetic analysis by Xing Hai, and colleagues.

References

{{Taxonbar, from=Q135620 Taxa named by William Parks

Classification

Phylogeny

See also

References