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Total: 4
infragenus
valid
Triletes
Section
Aphanozonati
Schopf
Rept. Invest. Illinois Geol. Surv., (50):
24.
1 Jul 1938
infragenus
valid
Triletes
Section
Auriculati
Schopf
Rept. Invest. Illinois Geol. Surv., (50):
30.
1 Jul 1938
infragenus
valid
Triletes
Section
Lagenicula
(Zerndt)
Schopf
Rept. Invest. Illinois Geol. Surv., (50):
27.
1 Jul 1938
infragenus
valid
Triletes
Section
Triangulati
Schopf
Rept. Invest. Illinois Geol. Surv., (50):
31-32.
1 Jul 1938