faunal assemblage

faunal assemblage (plural faunal assemblages)

1. (archaeology, paleontology) A group of different species that commonly associated with one another whose fossils occur together in a particular stratum.
   • 2018, Tim Flannery, Europe: A Natural History, page 192:

     Europe’s mammals are described by scientists as comprising faunal assemblages - groups of species that typically occur together.