However, if I were shown it out of any context, I'd call it a sans-serif font. I can see small hits of what might be called serifs, but on most characters it just seems like a tapered-out stroke. Is Marcellus considered serif, sans-serif, or something else altogether?
Fonts like this are called glyphic serif. But since for example Optima is widely considered a sans serif, I donâ€™t think it would be wrong to say the same for Marcellus.
By the way: The German font classification system (DIN 16518) considers fonts like this to be Antiqua-Variants. Antiqua-fonts that canâ€™t be classified clearly as serif or sans-serif go in this category.