2010 has been the Year of the Ceratopsian, certainly, but the lion's share of new named taxa have belonged to the Ceratopsidae--the large-bodied horned dinosaurs. Just for funsies, I'm going to list all the species known in 1995, then list all the species named since then. I think you'll see a massive increase in ceratopsid diversity. Ready? HERE WE GO! I've marked species of uncertain validity with a question-mark.
As of 1995:
"Diceratops" hatcheri (?)
Since 1995, as of this date:
Am I forgetting anyone? Even though we've actually lost a few species, and sometimes even genera, since 1995 (Monoclonius, Brachyceratops), and a few have been renamed (Agujaceratops, Rubeosaurus), the Ceratopsidae has, overall, exploded in diversity. Currently, there are 24 more-or-less valid genera (I'm lookin' at you, Nedoceratops) containing a whopping 30 species, unless I'm missing anybody, in which case there are actually MORE. And we're not done yet. There are several yet-to-be-published taxa that I'm personally aware of, and I'm sure my more informed colleagues know of even more. And the year is only half over. A lot more publishing can happen between now and 2011. Let's hope that 2010 continues to deliver more delicious horned dinosaur goodness!