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''Barilium'' is a 
In 2010 it was reclassified as a separate genus by David Norman. The generic name ''Barilium'' is derived from Greek ''barys'', "heavy", and Latin ''
Early and “Middle” Cretaceous Iguanodonts in Time and Space.
'' Journal of Iberian Geology'', 36 (2): 145-164. which is thus a junior objective synonym of ''Barilium''. It is known from two partial skeletons found near St Leonards-on-Sea in
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of iguanodontian 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 ...
which was first described as a species of '' Iguanodon'' (''I. dawsoni'') by Richard Lydekker
Richard Lydekker (; 25 July 1849 – 16 April 1915) was an English naturalist, geologist and writer of numerous books on natural history.
Biography
Richard Lydekker was born at Tavistock Square in London. His father was Gerard Wolfe Lydekker ...
in 1888, the specific epithet
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
honouring the discoverer Charles Dawson.
In 2010 it was reclassified as a separate genus by David Norman. The generic name ''Barilium'' is derived from Greek ''barys'', "heavy", and Latin ''ilium
Ilium or Ileum may refer to:
Places and jurisdictions
* Ilion (Asia Minor), former name of Troy
* Ilium (Epirus), an ancient city in Epirus, Greece
* Ilium, ancient name of Cestria (Epirus), an ancient city in Epirus, Greece
* Ilium Building, a ...
''. Later in 2010, Kenneth Carpenter and Yusuke Ishida independently assigned it to the new genus ''Torilion'',Carpenter, K. and Ishida, Y. (2010).Early and “Middle” Cretaceous Iguanodonts in Time and Space.
'' Journal of Iberian Geology'', 36 (2): 145-164. which is thus a junior objective synonym of ''Barilium''. It is known from two partial skeletons found near St Leonards-on-Sea in
East Sussex
East Sussex is a ceremonial and non-metropolitan county in South East England on the English Channel coast. It is bordered by Kent to the north and east, West Sussex to the west, and Surrey to the north-west. The largest settlement in East ...
, England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...
, from the middle Valanginian
In the geologic timescale, the Valanginian is an age or stage of the Early or Lower Cretaceous. It spans between 139.8 ± 3.0 Ma and 132.9 ± 2.0 Ma (million years ago). The Valanginian Stage succeeds the Berriasian Stage of the Lower Cretac ...
-age Lower Cretaceous
Lower may refer to:
*Lower (surname)
*Lower Township, New Jersey
*Lower Receiver (firearms)
*Lower Wick Gloucestershire, England
See also
*Nizhny
Nizhny (russian: Ни́жний; masculine), Nizhnyaya (; feminine), or Nizhneye (russian: Ни́� ...
Wadhurst Clay. Lydekker based the species on the syntype
In biological nomenclature, a syntype is any one of two or more biological types that is listed in a description of a taxon where no holotype was designated. Precise definitions of this and related terms for types have been established as part of ...
series BMNH R798, 798a, 803-805, 806, 798b, 802, 802a and 799-801. Norman chose NHMUK R 798 and R802, a dorsal vertebra and a left ilium, as the lectotype
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes th ...
.
A contemporary of ''Hypselospinus
''Hypselospinus'' is a genus of iguanodontian dinosaur which was first described as a species of '' Iguanodon'' (''I. fittoni'') by Richard Lydekker in 1889, the specific name honouring William Henry Fitton.
History
In May 2010 the fossils c ...
'' (also once thought to be a species of ''Iguanodon''), ''Barilium'' was a robust iguanodontian estimated at long.
''Barilium'' is separated from ''Hypselospinus'' on the basis of vertebral and pelvic characters, size, and build. For example, ''Barilium'' was more robust than ''Hypselospinus'', with large ''Camptosaurus
''Camptosaurus'' ( ) is a genus of plant-eating, beaked ornithischian dinosaurs of the Late Jurassic period of western North America and possibly also Europe. The name means 'flexible lizard' (Greek (') meaning 'bent' and (') meaning 'lizar ...
''-like vertebra
The spinal column, a defining synapomorphy shared by nearly all vertebrates, Hagfish are believed to have secondarily lost their spinal column is a moderately flexible series of vertebrae (singular vertebra), each constituting a characterist ...
e featuring short neural spines, whereas ''Hypselospinus'' is known for its "long, narrow, and steeply inclined neural spines".
References
{{Taxonbar, from=Q1932480 Iguanodonts Valanginian life Early Cretaceous dinosaurs of Europe Cretaceous England Fossils of England Fossil taxa described in 2010 Taxa named by David B. Norman Ornithischian genera