Overlapping markers can be separated by clicking on them. 
Hovering the cursor over a marker will show the site's name.
Clicking on a marker will show information available about the collection site. (Compare with corresponding letter in table.)
near Tonne Helgoland III, Skitt-Gatt (Skittgatt channel), Helgoland Island, Germany
in rocky gully (felsrinnen)
latitude: 54.200001     
longitude: 7.895833     
Precision of location: Gauged from chart or map 
Site Named Here: By name of site (or city, etc.) 
| Paratomella unichaeta | Apr 1963 | 5 m | chalk, gravel mix | |
| Paratomella unichaeta | Apr 28, 1963 | 5 m | lime chalk powder |