British geologist, vertebrate paleontologist; Pilgrim conducted surveys at several Cenozoic deposits
in the Persian Gulf and northwestern India. He revised the stratigraphy
of the Siwalik Hills
, and published on the vertebrates in each of the three major fossiliferous strata
. In 1915, Pilgrim described two Miocene hominoids
, Dryopithecus punjabicus and Sivapithecus indicus.