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 | Philadelphia, Pennsylvania, USA | 1852 or earlier | type locality | Leidy J (1852) 350; from Graff L v 1913 (citation)- p 45 |