- Family: Bivalve
- Species: Cardiola bohemica
- Geological Age: Silurian period, Ludlow beds, 443–419 million years ago
- Location: Lochkov, Czech Republic.
Cardiola bohemica is an extinct species of bivalve commonly found in what sis now the Czech Republic, the surface of the shells exhibit excellent details, ribbing can easily be seen with the naked eye, they are black in colour and are believed to be from the Ludlow beds in Lochkov, making them between 443–419 million years old. Small in size, they measure around 2 cm in size and do have some matrix surrounding them, how ever, the surface of the shell is completely visible. these fossil samples are supplied in a small packet with an information card.