[1]
Mayr, G. 2015.

Towards completion of the early Eocene aviary: A new bird group from the Messel oil shale (Aves, Eopachypterygidae, fam. nov.)

. Zootaxa. 4013, 2 (Sep. 2015), 252–264. DOI:https://doi.org/10.11646/zootaxa.4013.2.6.