User:Abyssal/Portal:Paleogene/DYK/20

... that only three possible fossils of the extinct ant Aphaenogaster oligocenica have been reported?
... that the paleobotanists David P. Penhallow and Chester A. Arnold both published studies on the extinct water-fern Azolla primaeva?
... that the scorpionfly family Eorpidae has a single genus, Eorpa, described in 2013?
... that the Paleocene Alaskan maple Acer alaskense was described from a fossil leaf that may be atypical for the species?
...that the discovery of Lazarussuchus showed that choristoderes, a type of aquatic reptile, had not gone extinct in the Eocene, but persisted for millions of years after?