Per Erik Ahlberg is a Swedish palaeontologist working with the earliest tetrapods.
He took his Ph.D. in zoology at the University of Cambridge in 1989 under English palaeontologist Jenny Clack.
[1] He is currently professor at the Department of Organismal Biology, University of Uppsala.
[2] He has collaborated with Clack on a number of projects.
[3] He was elected to the Royal Swedish Academy of Sciences early in 2012.