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.)
| site | collection date | depth | substrate | salin | locality kind | comments | reference | |
|---|---|---|---|---|---|---|---|---|
| A | Strait of Dover (Pas de Calais) | 1888 or earlier | type locality | Pas-de-Calais. | Hallez P (1888) ; from Faubel 1984 (citation)- p. 235 | |||
| B | north of France (Nordfrankreich) | 1893 or earlier | default type | Hallez P (1893) abstract & Bush card |