- ... that one species of the extinct Eocene bulldog ant Ypresiomyrma reached up to 25 millimetres (0.98 in) in length?
- ... that the discovery of the fossil of Shenshou, a squirrel-like early mammal from the Tiaojishan Formation, pushed the origin of mammals back to the Late Triassic, 220 million to 200 million years ago?
- ... that Gustava Aigner made the first discovery of graptolites in the northern greywacke zone of the Alps, with her former fellow student, Ida Peltzmann, who named two species for her?
- ... that the extinct sumac Rhus rooseae was described from fossils over 35 million years old?
- ... that the clawless lobster Tricarina is known from a single fossil, obtained from an oil well 3,852 m (12,638 ft) below ground in western Iran?
- ... that the parareptile Eunotosaurus (restoration pictured) was once widely accepted as a transitional form between turtles and their prehistoric ancestors?
- ... that the extinct incense-cedar Calocedrus huashanensis is one of only three conifers found in the Ningming Formation?
- ...that corals, graptolites, brachiopods and trilobites are frequently used as index fossils?
- ... that the discovery of Babakotia radofilai, an extinct species of sloth lemur, helped to resolve the relationship between the indriids, sloth lemurs, and monkey lemurs?
- ... that researchers have identified the pictured life form which no longer lives on this planet?