Heterotrypidae Ulrich, 1890

The family includes the genera

1. Dekayia
2. Eichwaldopora
3. Heterotrypa
4. Petigopora
5. Phragmotrypa
6. Reptonoditrypa
7. Stigmatella

Dekayella (=Heterotrypa) from Cincinnati region: at University of Georgia.
Dekayella (=Heterotrypa) from Nashville region: at University of Georgia.
Dekayia from Cincinnati region: at University of Georgia.
Heterotrypa from Cincinnati region: at University of Georgia.
Heterotrypa from Nashville region: at University of Georgia.
Petigopora from Cincinnati region: at University of Georgia.
Petigopora from Nashville region: at University of Georgia.
Stigmatella from Cincinnati region: at University of Georgia.

Heterotrypa subfrondosa reconstructions at DryDredgers.org.