Iguanodon bernissartensis mounted in modern quadrupedal posture, Royal Belgian Institute of Natural Sciences, Brussels
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
†Ornithischia
Clade:
†Ornithopoda
Clade:
†Hadrosauriformes
Family:
†Iguanodontidae Bonaparte, 1850
Subgroups
†Barilium?
†Bolong?
†Iguanodon
†Jinzhousaurus?
†Lurdusaurus?
†Mantellisaurus?
†Proa?
Iguanodontidae is a family of iguanodontians belonging to Styracosterna, a derived clade within Ankylopollexia.
Characterized by their elongated maxillae, they were herbivorous and typically large in size. This family exhibited locomotive dynamism; there exists evidence for both bipedalism and quadrupedalism within iguanodontid species, supporting the idea that individual organisms were capable of both locomoting exclusively with their hind limbs and locomoting quadrupedally.[1] Iguanodontids possess hoof-like second, third, and fourth digits, and in some cases, a specialized thumb spike and an opposable fifth digit.[2] Their skull construction allows for a strong chewing mechanism called a transverse power stroke.[3] This, paired with their bilateral dental occlusion, made them extremely effective as herbivores.[4] Members of Iguanodontidae are thought to have had a diet that consisted of both gymnosperms and angiosperms, the latter of which co-evolved with the iguanodontids in the Cretaceous period.[5]
There is no consensus on the phylogeny of the group. Iguanodontidae is most frequently characterized as paraphyletic with respect to Hadrosauridae,[6][7] although some researchers advocate for a monophyletic view of the family.[8][9]
^Galton, Peter (1976). "The Dinosaur Vectisaurus valdensis (Ornithischia: Iguanodontidae) from the Lower Cretaceous of England". Journal of Paleontology. 50 (5): 976–984.
^Moratalla, J.J. (1992). "A Quadrupedal Ornithopod Trackway from the Lower Cretaceous of La Rioja (Spain): Inferences on Gait and Hand Structure". Journal of Vertebrate Paleontology. 12 (2): 150–157. doi:10.1080/02724634.1992.10011445. JSTOR 4523436.
^Godefroit, Pascal (2012). Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems.
^Weishampel, David (2012). Evolution of Jaw Mechanisms in Ornithopod Dinosaurs.
Iguanodontidae is a family of iguanodontians belonging to Styracosterna, a derived clade within Ankylopollexia. Characterized by their elongated maxillae...
common in the Southern Hemisphere. In 1870, Thomas Henry Huxley listed Iguanodontidae (coined by Cope a year earlier) as one of his three families of dinosaurs...
in a paraphyletic (unnatural grouping) "Iguanodontidae". With cladistic analysis, the traditional Iguanodontidae has been largely disbanded, and probably...
Ouranosaurus, and the duck-bills, or hadrosaurs. In older sources, Iguanodontidae was shown as a distinct family. This family traditionally has been something...
Ornithopoda †Family Heterodontosauridae †Family Hypsilophodontidae †Family Iguanodontidae * †Family Hadrosauridae The following is based on the second edition...
pozdnikh Iguanodontidae i rannikh Hadrosauridae. [New iguanodonts from Central Asia. Phylogenetic and taxonomic interrelationships of late Iguanodontidae and...
iguanodontians were grouped into the superfamily Iguanodontoidea and family Iguanodontidae. However, phylogenetic studies show that the traditional "iguanodontids"...
Ouranosaurus (relative of Iguanodon; or in other words a dinosaur from the Iguanodontidae family). Then he adopts a young female Maiasaura from a Maiasaura family...
rounded profile. Molnar originally assigned Muttaburrasaurus to the Iguanodontidae. Later authors suggested more basal euornithopod groups such as the...
hdl:10362/127574. S2CID 146510209. Norman, David B.; Weishampel, David B. (1990). "Iguanodontidae and related ornithopods". In Weishampel, David B.; Dodson, Peter; and...
Camptosauridae. Alternatively some authors considered it an early member of the Iguanodontidae. Modern phylogenetics has made Camptosaurus by definition part of the...
Hypsilophodon taxonomically, considering it to belong to the family Iguanodontidae, related to Iguanodon and Hadrosaurus. There would later be a persistent...
in a monophyletic Iguanodontidae as closer to the East Asian Bolong and Jinzhousaurus than to other European members of Iguanodontidae. Verdu et al (2017)...
workers found Rhabdodon and Mochlodon within either Camptosauridae or Iguanodontidae. However, Paul Sereno (1986) found that Rhabdodon and Mochlodon were...
front dorsal vertebrae. They preliminarily placed it into the family Iguanodontidae, though conceded there is poor resolution on its higher classification...
related to Ankylosauria, while he placed Protiguanodon within the family Iguanodontidae as the only member of the new subfamily Protiguanodontinae. Osborn published...
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