Acanthotelson stimpsoni
Subphylum: Crustacea, Class Malacostraca, Subclass Eumalacostraca, Superorder Syncarida
Geological Time: Pennsylvanian (~300 m.y.a.)
Size (25.4mm=1 inch): 25 mm long Matrix: 39 mm by 40 mm.
Fossil Site: Francis Creek Formation, Mazon Creek, Pit 11, Francis Creek Shale, Braidwood, Illinois
 This
specimen is of a genus that had a well-sclerotized cuticle, enabling
fine preservation with well differentiated segmental rings. The styliform
telson is also very distinctive. This fossil is preserved dorsally,
giving an exceptional view of creatures legs and antennae. |
