- ... that the extinct ant Aphaenogaster sommerfeldti was first described in 1868?
- ... that the Late Eocene marine Hoko River Formation is noted for producing crab, gastropod, cephalopod, and wood fossils?
- ... that the name for the extinct birch family genus Kardiasperma is from the Greek words for "heart" and "seed"?
- ... that the extinct Canadian redwood Metasequoia foxii was described from over 10,000 fossils?
- ... that the extinct Eocene maple species Acer rousei is a possible ancestor to the vine maple?