English: A fossil Mursia marcusana, carapace ~3.5cm across without the spines. Oligocene, Blakeley Formation, King County, Washington, USA. Stonerose Interpretive Center, Gary Eichhorn Crab Collection, # SR EC 07-01-25
{{Information |Description={{en|1=A fossil ''Mursia marcusana'', carapace ~3.5cm across without the spines. Oligocene, Blakeley Formation, King County, Washington, USA. Stonerose Interpretive Center, Gary Eichhorn Crab Collection, # SR EC ??-??-??}} |So