| Referens | US Geological Survey Professional Paper, 1981 Seismic intensities of earthquakes of conterminous United States - their prediction and interpretation. Geological Survey Professional Paper 1223. |
| Ref. | 116435 US Geological Survey Professional Paper, 1981 |
| Sida | |
| Named Used as Valid | Glycymeris aspera |
| Observationsplats | |
| Distribution |