Cyclonemafrom the Ordovician of central Kentucky
 |
Cyclonema sp. |
 |
Probably Fusispira/Subulities genus. Looks like Fusispira nobilis. The smaller with the fuller whorls looks like Hormotoma sp. [Info. from Peter Lickley.] |
 |
Maclurites |
 |
Trepispira medalis from the Lexington Limestone (identified by Alan Goldstein). |
Turbonopsis shumardi, recrystallized internal mold (steinkern), Devonian of Kentucky
 |
Palaeozyglopleura from Devonian age (identified by A. Goldstein) |
 |
Palaeozyglopleura from Devonian age (identified by A. Goldstein) |
 |
Palaeozyglopleura from Devonian age (identified by A. Goldstein) in cross section, recrystallized |
 |
Turbonopsis shumardi, large specimen |
 |
Turbonopsis shumardi, large specimen |
 |
Platyceras sp., internal mold (steinkern) |
 |
Platyceras dumosum, view of spines in rock with shell removed |
Worthenia tabulata from the Pennsylvanian of eastern Kentucky
 |
Worthenia tabulata, same specimen as above |
 |
Worthenia tabulata |
 |
high-spired specimens |
 |
Bellerophon (Pharkidonatus) cf. B. percarinatus, color pattern preserved around aperture (opening) |
 |
Trepospira illinoiensis, aragonitic shell material preserved |
 |
Strobeus sp., preserved by pyrite (iron sulfide) |
