- ...that the extinct crocodile-like Prionosuchus is the largest amphibian known to have existed?
- ...that the Choristodera are extinct reptiles that lived during the time of the dinosaurs and have a skull structure similar to that of the modern day Gharial?
- ... that the extinct plant species Eucommia jeffersonensis and Eucommia rolandii were both described from fossils in 1997?
- ... that the extinct snakefly Alavaraphidia is known from a single female trapped in amber (pictured)?
- ... that the extinct maple section Torada is only known from the three Eocene species A. stonebergae, A. toradense, and A. washingtonense?
- ... that the shrimp-like 510-million-year-old arthropod Waptia (artist's restoration pictured) was named after two mountains?
- ... that the early dinosaur-like animal Lagerpeton was only 70 cm (28 in) long?
- ... that the extinct monitor lizard Ovoo gurvel has "mystery bones" in its skull?
- ... that the extinct termite bug Termitaradus dominicanus is divided into fourteen brown lobes?
- ... that the extinct arachnid Attercopus was once considered as the world's oldest spider?