You certainly can identify different styles as from different decades, but you would see multiple different styles in use in a decade up to the 2000's, whereas since then it's kind of all convened onto a fairly standardized type.
I'm sure there are still outliers, but it's not like before, where if you look at 90's stuff, Sailor Moon, Ranma, Dragonball, and Neon Genesis Evangelion had very noticeably divergent styles. I'd say NGE had something the most similar to more modern styles.
Post-2010, the only anime I can think of with a substantially different style for drawing bodies would be JoJo's Bizarre Adventure, which is based on a Manga that started in the 80's. Just about everything else I can think of, you could drop a character from one series into another series, and unless the outfit doesn't fit the setting, they wouldn't stand out as clearly alien art.