Barilium

Name: Barilium ‭(‬Heavy ilium‭)‬.
Phonetic: Ba-ril-e-um.
Named By: David Norman‭ ‬-‭ ‬2010.
Synonyms: Iguanodon dawsoni,‭ ‬Torilion.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Ornithischia, ornithopod.
Species: B.‭ ‬dawsoni‭ (‬type‭)‬.
Diet: Herbivore.
Size: Roughly about‭ ‬8‭ ‬meters long.
Known locations: England,‭ ‬Sussex‭ ‬-‭ ‬Wadhurst Clay.
Time period: Valanginian of the Cretaceous.
Fossil representation: Partial hip.

       Originally named as a species of Iguanodon by Richard Lydekker in‭ ‬1888,‭ ‬the holotype fossils of this genus were actually named as a new genus twice in‭ ‬2010,‭ ‬in two separate papers published that year.‭ ‬The holotype specimen was first named by David Norman as Barilium,‭ ‬and then by Kenneth Carpenter and Yusuke Ishida as Torilion.‭ ‬Since Norman’s paper was published first,‭ ‬under international rules governing the naming of animals,‭ ‬Barilium has priority.‭ ‬Carpenter and Ishida also named a second genus called Sellacoxa from another hip,‭ ‬but Norman has claimed this as a further specimen of Barilium.‭ ‬This is why Sellacoxa is sometimes credited with being a synonym to Barilium by some and a distinct genus by others.‭

Further reading
-‭ ‬Note on a new Wealden iguanodont and other dinosaurs.‭ ‬-‭ ‬Quarterly Journal of the Geological Society of London‭ ‬44:‭ ‬46‭–‬61.‭ ‬-‭ ‬Richard Lydekker‭ ‬-‭ ‬1888.
-‭ ‬A taxonomy of iguanodontians‭ (‬Dinosauria:‭ ‬Ornithopoda‭) ‬from the lower Wealden Group‭ (‬Cretaceous:‭ ‬Valanginian‭) ‬of southern England.‭ ‬-‭ ‬Zootaxa‭ ‬2489:‭ ‬47‭–‬66.‭ ‬David Norman‭ ‬-‭ ‬2010.
-‭ ‬Early and‭ ‘‬Middle’‭ ‬Cretaceous Iguanodonts in Time and Space.‭ ‬-‭ ‬Journal of Iberian Geology,‭ ‬36‭ (‬2‭)‬:‭ ‬145-164.‭ ‬-‭ ‬Kenneth Carpenter‭ & ‬Yusuke Ishida‭ ‬-‭ ‬2010.



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