Kukufeldia is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of iguanodont

Iguanodont

Iguanodonts were herbivorous dinosaurs that lived from the mid-Jurassic to Late Cretaceous. Some members include Camptosaurus, Callovosaurus, Iguanodon, Ouranosaurus, and the hadrosaurids or "duck-billed dinosaurs". Iguanodonts were one of the first groups of dinosaurs to be found...

 which existed in what is now England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 during the Early Cretaceous

Early Cretaceous

The Early Cretaceous or the Lower Cretaceous , is the earlier or lower of the two major divisions of the Cretaceous...

 period. Identified from a nearly complete right dentary

Mandible

The mandible pronunciation or inferior maxillary bone forms the lower jaw and holds the lower teeth in place...

 (NHMUK 28660) found near Cuckfield

Cuckfield

Cuckfield is a large village and civil parish in the Mid Sussex District of West Sussex, England, on the southern slopes of the Weald. It lies south of London, north of Brighton, and east northeast of the county town of Chichester. Nearby towns include Haywards Heath to the southeast and Burgess...

 and originally described in 1848 by Gideon Mantell

Gideon Mantell

Gideon Algernon Mantell MRCS FRS was an English obstetrician, geologist and palaeontologist...

, it was named by Andrew T. McDonald, Paul M. Barrett, and Sandra D. Chapman in 2010, and the type species is Kukufeldia tilgatensis. It was originally identified as Iguanodon

Iguanodon

Iguanodon is a genus of ornithopod dinosaur that lived roughly halfway between the first of the swift bipedal hypsilophodontids and the ornithopods' culmination in the duck-billed dinosaurs...

 anglicus, but the authors consider this a nomen dubium

Nomen dubium

In zoological nomenclature, a nomen dubium is a scientific name that is of unknown or doubtful application...

of which the type specimen BMNH 2392, some teeth found at the same location, is undiagnostic. The generic name refers to Kukufeld ("Cuckoo's Field"), the name of Cuckfield in the eleventh century, and the specific name refers to Tilgate. Kukufeldia is within Iguanodontia a member of the Styracosterna.