paleontology vs palaeontology

paleontology and palaeontology both are nouns.

Word	Noun	Adjective	Verb	Adverb
paleontology	Yes	No	No	No
palaeontology	Yes	No	No	No

As nouns, paleontology and palaeontology are synonyms defined as:

paleontology and palaeontology: the earth science that studies fossil organisms and related remains

Other synonyms of paleontology include fossilology.

paleontology (noun)	palaeontology (noun)
the earth science that studies fossil organisms and related remains	the earth science that studies fossil organisms and related remains