Paleolimulus signatus
Horseshoe crab fossils are relatively uncommon in the
rock record. The fossil shown below lacks the telson, but does have
appendages preserved. This is Paleolimulus signatus (Beecher,
1904) (Arthropoda, Chelicerata, Xiphosura), from the Pony Creek Shale
Lagerstätte of eastern Kansas.
Stratigraphy: Pony Creek Shale Member, Wood Siding Formation, Wabaunsee Group,
Virgilian, upper Upper Pennsylvanian.
Locality:
roadcut on southern side of Interstate-70, ~1 km west of overpass at Maple Hill
exit, Wabaunsee County, eastern Kansas, USA.
Paleolimulus signatus (Beecher, 1904) fossil horseshoe crab (31.5 mm tall)
from the Wood Siding Formation (Upper Pennsylvanian) of Wabaunsee County,
eastern Kansas, USA.