Black Marsh Turtle
Siebenrockiella crassicollis
- Endangered
- Card rarity: Epic
- Reptiles

Siebenrockiella crassicollis is a freshwater turtle endemic to Southeast Asia. It is one of two species classified under the genus Siebenrockiella in the family Geoemydidae.
Classification
- Class
- Reptilia
- Order
- Testudines
- Family
- Geoemydidae
- Genus
- Siebenrockiella