Via Yahoo ESCONI Discussion Group from Science:

Scientists have named a new species of horned dinosaur (ceratopsian) from Alberta, Canada. Xenoceratops foremostensis
(Zee-NO-Sare-ah-tops) was identified from fossils originally collected
in 1958. Approximately 20 feet long and weighing more than 2 tons, the
newly identified plant-eating dinosaur represents the oldest known
large-bodied horned dinosaur from Canada.