![A life restoration of Leptocleidus](http://upload.luquay.com/wikipedia/commons/thumb/b/b9/Leptocleidus1DB.jpg/100px-Leptocleidus1DB.jpg)
- ... that multiple Leptocleidus skeletons have been found preserved as gemstone quality opal over the course of the history of plesiosaur research?
- ... that the ant Aphaenogaster avita was described from a fossil found in 1969?
- ... that the early Eocene maple species Acer douglasense is the second-oldest maple known from Alaska?
- ... that the extinct trapdoor spiders Baltocteniza and Electrocteniza were both identified from specimens in Baltic amber?
- ... that the Qaisracetus, a genus of extinct early whales, was named after a tribe in Pakistan?
![A fossil Branchioplax washingtoniana from the Hoko River Formation](http://upload.luquay.com/wikipedia/commons/thumb/5/5f/Branchioplax_washingtoniana_01_SR_EC_07-01-13.jpg/100px-Branchioplax_washingtoniana_01_SR_EC_07-01-13.jpg)
- ... that the Late Eocene marine Hoko River Formation is noted for producing crab, gastropod, cephalopod, and wood fossils?
- ... that the extinct ant Acanthognathus poinari had jaws like its modern relatives?
- ... that the extinct Gigantoproductus giganteus was the largest known species of brachiopod?
- ... that the extinct ant Attopsis was fossilized in what may have been a lagoon?
- ... that the Klondike Mountain Formation has fossil hot springs and is a lagerstätten?