Description
Adelophthalmus mazonensis
Mazon Creek
Middle Pennsylvanian (Westphalian D)
Knob Noster, Johnson County, Missouri, USA
46mm eurypterid on 95mm concretion (Half only). Very rare.
Adelophthalmus mazonensis (Meek & Worthen, 1868)
$999
Sold out
Additional information
| Weight | 140 g |
|---|
