Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSaccoglossus testa from the Mazon Creek fauna (Pennsylvanian of Illinois) and the evolution of acorn worms (Enteropneusta: Hemichordata).AuthorsCameron, Christopher B.; Rahman, ImranPublicationPalaeontology, 2016, Vol 59, Issue 3, p329ISSN0031-0239Publication typeArticleDOI10.1111/pala.12235