Temporal range: Middle Jurassic–Late Cretaceous, 164–66 Ma
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Tenontosaurus skeletal mounts at the Sam Noble Oklahoma Museum of Natural History
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
†Ornithischia
Clade:
†Ornithopoda
Clade:
†Iguanodontia Baur, 1891
Subgroups
†Cumnoria
†Napaisaurus
†Rhabdodontomorpha
†Dryomorpha
†Hesperonyx
†Dryosauridae
†Ankylopollexia
The Iguanodontia (the iguanodonts) are a clade of herbivorous dinosaurs that lived from the Middle Jurassic to Late Cretaceous. Some members include Camptosaurus, Dryosaurus, Iguanodon, Tenontosaurus, and the hadrosaurids or "duck-billed dinosaurs". Iguanodontians were one of the first groups of dinosaurs to be found. They are among the best known of the dinosaurs, and were among the most diverse and widespread herbivorous dinosaur groups of the Cretaceous period.[1]
^McDonald, A.T.; Kirkland, J.I.; DeBlieux, D.D.; Madsen, S.K.; Cavin, J.; Milner, A.R.C.; Panzarin, L. (2010). Farke, Andrew Allen (ed.). "New Basal Iguanodontians from the Cedar Mountain Formation of Utah and the Evolution of Thumb-Spiked Dinosaurs". PLOS ONE. 5 (11): e14075. Bibcode:2010PLoSO...514075M. doi:10.1371/journal.pone.0014075. PMC 2989904. PMID 21124919.
The Iguanodontia (the iguanodonts) are a clade of herbivorous dinosaurs that lived from the Middle Jurassic to Late Cretaceous. Some members include Camptosaurus...
bipedal and relatively small-sized, while advanced members of the subgroup Iguanodontia became quadrupedal and developed large body size. Their major evolutionary...
around the same time have instead found these latter taxa to be within Iguanodontia. Hypsilophodontidae was named originally in 1882 by Louis Dollo, as a...
to define Dinosauria. The genus Iguanodon belongs to the larger group Iguanodontia, along with the duck-billed hadrosaurs. The taxonomy of this genus continues...
E. Poole recovered a large Hypsilophodontidae as the sister taxon of Iguanodontia, which consisted of several "traditional" hypsilophodontids, as well...
while the latter typically includes Hypsilophodon and the more derived Iguanodontia. Neornithischia was first named by Cooper in 1985 and defined as "all...
However, Paul Sereno (1986) found that Rhabdodon and Mochlodon were within Iguanodontia. The ICZN (1988) resolved this complication, selecting the ornithopod...
al. (2023) recovered Iani as a basal rhabdodontomorph member of the Iguanodontia. They interpreted it as a transitional taxon between Tenontosaurus and...
as the sister taxon to the clade containing Thescelosaurus and the Iguanodontia. Ampelognathus was thus likely more closely related to iguanodontians...
ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia". Science Bulletin. 63 (9): 556–563. Bibcode:2018SciBu..63..556X. doi:10...
have been impossible. Fukuisaurus was assigned by its describers to Iguanodontia, although the presence of a posterolateral process of the sternum indicated...
was placed as follows: Based on studies of other iguanodonts (clade Iguanodontia), scientists believe they may have been able to achieve running speeds...
(2010). "A juvenile skull of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia), and implications for cranial ontogeny, phylogeny, and taxonomy in ornithopod...
to Mateus and Antunes (2001), Draconyx loureiroi is a member of the Iguanodontia, more specifically the Camptosauridae, based on the maxillary teeth,...
this to be an unnatural grouping, and Rhabdodon to be a basal member of Iguanodontia. It was large amongst its relatives, measuring 4 m (13 ft) long and weighing...
Struthiomimus in the Ceratosauria. In 1891, Baur placed the genus within Iguanodontia. As late as 1993, Struthiomimus was referred to Oviraptorosauria. However...
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