Ornithopoda vs euronithopod

Ornithopoda and euronithopod both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ornithopoda	Yes	No	No	No
euronithopod	Yes	No	No	No

As nouns, Ornithopoda and euronithopod are synonyms defined as:

Ornithopoda and euronithopod: widespread group including duck-billed dinosaurs and their early relatives (hadrosaurs, trachodon and iguanodon)

Other synonyms of Ornithopoda include Euronithopoda, suborder Euronithopoda, suborder Ornithopoda.

Ornithopoda (noun)	euronithopod (noun)
widespread group including duck-billed dinosaurs and their early relatives (hadrosaurs, trachodon and iguanodon)	widespread group including duck-billed dinosaurs and their early relatives (hadrosaurs, trachodon and iguanodon)