| Literature DB >> 5432581 |
Abstract
Hesslerella shermani is described as the oldest representative of the crustacean superorder Peracarida, order Isopoda, suborder Phreatoicidea. This description is based on a single specimen of exceptional preservation from the Middle Pennsylvanian of Illinois. The existence of isopods in the Pennsylvanian raises some questions concerning peracarid and eumalocostracan evolution.Mesh：
Year: 1970 PMID： 5432581 DOI： 10.1126/science.169.3948.854
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728