- ... that the extinct wasps Dryinus grimaldii and Dryinus rasnitsyni are distinguishable by the modified claws on their front legs?
- ... that Megalictis ferox, a species of extinct predatory mustelid, resembled a modern wolverine but with three times the body mass?
- ... that it may not be possible to determine what ?Oryzomys pliocaenicus is?
- ... that Aquila bullockensis, an extinct species of bird, is the oldest known true eagle from Australia?
- ... that the Miocene maple Acer traini may be the same species as the living Douglas Maple (fruits pictured)?