L'ordine comprendeva le seguenti famiglie e generi estinti:<ref name=">Shoshani, &Jeheskel; Pascal Tassy (2005). ["Advances in proboscidean taxonomy & classification, anatomy & physiology, and ecology & behavior" https://www.sciencedirect.com/science/article/abs/pii/S1040618204000734?via%3Dihub]. Quaternary International. 126–128: 5–20.</ref><ref>{{cite journal|doi=10.1080/14772019.2016.1208687|title=Morphological and ecological diversity of Amebelodontidae (Proboscidea, Mammalia) revealed by a Miocene fossil accumulation of an upper-tuskless proboscidean|journal=Journal of Systematic Palaeontology|volume=15|issue=8|pages=601–615|year=2017|last1=Wang|first1=Shi-Qi|last2=Deng|first2=Tao|last3=Ye|first3=Jie|last4=He|first4=Wen|last5=Chen|first5=Shan-Qin}}</ref><ref name="Mothé et al 2016">{{cite journal|last=Mothé|first=Dimila|last2=Ferretti|first2=Marco P.|last3=Avilla|first3=Leonardo S.|title=The Dance of Tusks: Rediscovery of Lower Incisors in the Pan-American Proboscidean Cuvieronius hyodon Revises Incisor Evolution in Elephantimorpha|journal=PLOS One|volume=11|pages=e0147009|date=12 January 2016|doi=10.1371/journal.pone.0147009|pmid=26756209|pmc=4710528}}</ref><ref>{{cite journal|doi=10.1017/jpa.2019.98|title=Filling a gap in the proboscidean fossil record: a new genus from the Lutetian of Senegal|journal=Journal of Paleontology|year=2019|last1=Tabuce|first1=Rodolphe|last2=Sarr|first2=Raphaël|last3=Adnet|first3=Sylvain|last4=Lebrun|first4=Renaud|last5=Lihoreau|first5=Fabrice|last6=Martin|first6=Jeremy|last7=Sambou|first7=Bernard|last8=Thiam|first8=Mustapha|last9=Hautier|first9=Lionel}}</ref>
