Representative fossil bumble bees A Oligobombus cuspidatus (photograph by Antropov et al. (2014)) B Holotype of Calyptapis florissantensis (photograph by Manuel Dehon) C C. florissantensis (photograph by Talia S. Karim) D Bombus (Paraelectrobombus) patriciae (photograph by Gaëlle Doitteau) E B. (Mendacibombus) beskonakensis (photograph by Gaëlle Doitteau).

 
 
  Part of: Dehon M, Engel MS, Gérard M, Aytekin AM, Ghisbain G, Williams PH, Rasmont P, Michez D (2019) Morphometric analysis of fossil bumble bees (Hymenoptera, Apidae, Bombini) reveals their taxonomic affinities. ZooKeys 891: 71-118. https://doi.org/10.3897/zookeys.891.36027