- ... that the extinct fir species Abies milleri, known from Early Eocene fossils (pictured) found in Ferry County, Washington, is considered the oldest confirmed record for the fir genus?
- ... that the big-headed fly Metanephrocerus belgardeae expanded the known range for the genus to North America?
- ... that the extinct Lotus Nelumbo aureavallis is known from Eocene rocks in western North Dakota?