fossilology vs palaeontology

fossilology and palaeontology both are nouns.

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

As nouns, fossilology and palaeontology are synonyms defined as:

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

Other synonyms of fossilology include paleontology.

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